csaf_suse - suse-su-2021:14848-1

Vulnerability from csaf_suse

Published

2021-12-01 15:57

Modified

2021-12-01 15:57

Summary

Security update for xen

Notes

Title of the patch

Security update for xen

Description of the patch

This update for xen fixes the following issues: - CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375) (bsc#1186433). - CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654). - CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3 (XSA-377) (bsc#1186434). - CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling (XSA-373) (bsc#1186429). - CVE-2021-28697: Fixed grant table v2 status pages may remain accessible after de-allocation (XSA-379) (bsc#1189376). - CVE-2021-28698: Fixed long running loops in grant table handling. (XSA-380) (bsc#1189378). - CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632). - CVE-2021-28703: Fixed grant table v2 status pages may remain accessible after de-allocation (take two) (XSA-387) (bsc#1192555). - CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559). - CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554). - CVE-2021-3527: Fixed unbounded stack allocation in usbredir (bsc#1186013). - CVE-2021-3592: Fixed invalid pointer initialization may lead to information disclosure in slirp (bootp) (bsc#1187369). - CVE-2021-3594: Fixed invalid pointer initialization may lead to information disclosure in slirp (udp) (bsc#1187378). - CVE-2021-3595: Fixed invalid pointer initialization may lead to information disclosure in slirp (tftp) (bsc#1187376). - CVE-2021-3682: Fixed free call on invalid pointer in usbredir bufp_alloc (bsc#1189150). - CVE-2021-3930: Fixed off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (bsc#1192526).

Patchnames

slessp4-xen-14848

CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).

JSON

To clipboard

{
   document: {
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            category: "summary",
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            text: "This update for xen fixes the following issues:\n\n- CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375) (bsc#1186433).\n- CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100 (bsc#1182654).\n- CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3 (XSA-377) (bsc#1186434).\n- CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling (XSA-373) (bsc#1186429).\n- CVE-2021-28697: Fixed grant table v2 status pages may remain accessible after de-allocation (XSA-379) (bsc#1189376).\n- CVE-2021-28698: Fixed long running loops in grant table handling. (XSA-380) (bsc#1189378).\n- CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632).\n- CVE-2021-28703: Fixed grant table v2 status pages may remain accessible after de-allocation (take two) (XSA-387) (bsc#1192555).\n- CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559).\n- CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).\n- CVE-2021-3527: Fixed unbounded stack allocation in usbredir (bsc#1186013).\n- CVE-2021-3592: Fixed invalid pointer initialization may lead to information disclosure in slirp (bootp) (bsc#1187369).\n- CVE-2021-3594: Fixed invalid pointer initialization may lead to information disclosure in slirp (udp) (bsc#1187378).\n- CVE-2021-3595: Fixed invalid pointer initialization may lead to information disclosure in slirp (tftp) (bsc#1187376).\n- CVE-2021-3682: Fixed free call on invalid pointer in usbredir bufp_alloc (bsc#1189150).\n- CVE-2021-3930: Fixed off-by-one error in mode_sense_page() in hw/scsi/scsi-disk.c (bsc#1192526).\n",
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            summary: "SUSE CVE CVE-2021-3930 page",
            url: "https://www.suse.com/security/cve/CVE-2021-3930/",
         },
      ],
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   vulnerabilities: [
      {
         cve: "CVE-2021-0089",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-0089",
            },
         ],
         notes: [
            {
               category: "general",
               text: "Observable response discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-0089",
               url: "https://www.suse.com/security/cve/CVE-2021-0089",
            },
            {
               category: "external",
               summary: "SUSE Bug 1186433 for CVE-2021-0089",
               url: "https://bugzilla.suse.com/1186433",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.5,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-0089",
      },
      {
         cve: "CVE-2021-20255",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-20255",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-20255",
               url: "https://www.suse.com/security/cve/CVE-2021-20255",
            },
            {
               category: "external",
               summary: "SUSE Bug 1182651 for CVE-2021-20255",
               url: "https://bugzilla.suse.com/1182651",
            },
            {
               category: "external",
               summary: "SUSE Bug 1182654 for CVE-2021-20255",
               url: "https://bugzilla.suse.com/1182654",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 3.2,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-20255",
      },
      {
         cve: "CVE-2021-28690",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28690",
            },
         ],
         notes: [
            {
               category: "general",
               text: "x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28690",
               url: "https://www.suse.com/security/cve/CVE-2021-28690",
            },
            {
               category: "external",
               summary: "SUSE Bug 1186434 for CVE-2021-28690",
               url: "https://bugzilla.suse.com/1186434",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 5.6,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28690",
      },
      {
         cve: "CVE-2021-28692",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28692",
            },
         ],
         notes: [
            {
               category: "general",
               text: "inappropriate x86 IOMMU timeout detection / handling IOMMUs process commands issued to them in parallel with the operation of the CPU(s) issuing such commands. In the current implementation in Xen, asynchronous notification of the completion of such commands is not used. Instead, the issuing CPU spin-waits for the completion of the most recently issued command(s). Some of these waiting loops try to apply a timeout to fail overly-slow commands. The course of action upon a perceived timeout actually being detected is inappropriate: - on Intel hardware guests which did not originally cause the timeout may be marked as crashed, - on AMD hardware higher layer callers would not be notified of the issue, making them continue as if the IOMMU operation succeeded.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28692",
               url: "https://www.suse.com/security/cve/CVE-2021-28692",
            },
            {
               category: "external",
               summary: "SUSE Bug 1186429 for CVE-2021-28692",
               url: "https://bugzilla.suse.com/1186429",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 4.2,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L",
                  version: "3.1",
               },
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
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               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28692",
      },
      {
         cve: "CVE-2021-28697",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28697",
            },
         ],
         notes: [
            {
               category: "general",
               text: "grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.",
               title: "CVE description",
            },
         ],
         product_status: {
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            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28697",
               url: "https://www.suse.com/security/cve/CVE-2021-28697",
            },
            {
               category: "external",
               summary: "SUSE Bug 1189376 for CVE-2021-28697",
               url: "https://bugzilla.suse.com/1189376",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 7.4,
                  baseSeverity: "HIGH",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "important",
            },
         ],
         title: "CVE-2021-28697",
      },
      {
         cve: "CVE-2021-28698",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28698",
            },
         ],
         notes: [
            {
               category: "general",
               text: "long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones which aren't in use anymore and some which may have been created but never used. If the number of entries for a given domain is large enough, this iterating of the entire table may tie up a CPU for too long, starving other domains or causing issues in the hypervisor itself. Note that a domain may map its own grants, i.e. there is no need for multiple domains to be involved here. A pair of \"cooperating\" guests may, however, cause the effects to be more severe.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28698",
               url: "https://www.suse.com/security/cve/CVE-2021-28698",
            },
            {
               category: "external",
               summary: "SUSE Bug 1189378 for CVE-2021-28698",
               url: "https://bugzilla.suse.com/1189378",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
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               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 5.5,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28698",
      },
      {
         cve: "CVE-2021-28701",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28701",
            },
         ],
         notes: [
            {
               category: "general",
               text: "Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28701",
               url: "https://www.suse.com/security/cve/CVE-2021-28701",
            },
            {
               category: "external",
               summary: "SUSE Bug 1189632 for CVE-2021-28701",
               url: "https://bugzilla.suse.com/1189632",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
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               ],
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         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 7.4,
                  baseSeverity: "HIGH",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "important",
            },
         ],
         title: "CVE-2021-28701",
      },
      {
         cve: "CVE-2021-28703",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28703",
            },
         ],
         notes: [
            {
               category: "general",
               text: "grant table v2 status pages may remain accessible after de-allocation (take two) Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes. This bug was fortuitously fixed by code cleanup in Xen 4.14, and backported to security-supported Xen branches as a prerequisite of the fix for XSA-378.",
               title: "CVE description",
            },
         ],
         product_status: {
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         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28703",
               url: "https://www.suse.com/security/cve/CVE-2021-28703",
            },
            {
               category: "external",
               summary: "SUSE Bug 1192555 for CVE-2021-28703",
               url: "https://bugzilla.suse.com/1192555",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 6.3,
                  baseSeverity: "MEDIUM",
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               ],
            },
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            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28703",
      },
      {
         cve: "CVE-2021-28705",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28705",
            },
         ],
         notes: [
            {
               category: "general",
               text: "issues with partially successful P2M updates on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). In some cases the hypervisor carries out the requests by splitting them into smaller chunks. Error handling in certain PoD cases has been insufficient in that in particular partial success of some operations was not properly accounted for. There are two code paths affected - page removal (CVE-2021-28705) and insertion of new pages (CVE-2021-28709). (We provide one patch which combines the fix to both issues.)",
               title: "CVE description",
            },
         ],
         product_status: {
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         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-28705",
               url: "https://www.suse.com/security/cve/CVE-2021-28705",
            },
            {
               category: "external",
               summary: "SUSE Bug 1192559 for CVE-2021-28705",
               url: "https://bugzilla.suse.com/1192559",
            },
         ],
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            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            },
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         scores: [
            {
               cvss_v3: {
                  baseScore: 5.5,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
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            },
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            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28705",
      },
      {
         cve: "CVE-2021-28706",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28706",
            },
         ],
         notes: [
            {
               category: "general",
               text: "guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.",
               title: "CVE description",
            },
         ],
         product_status: {
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            {
               category: "external",
               summary: "CVE-2021-28706",
               url: "https://www.suse.com/security/cve/CVE-2021-28706",
            },
            {
               category: "external",
               summary: "SUSE Bug 1192554 for CVE-2021-28706",
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            },
         ],
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            {
               category: "vendor_fix",
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            {
               cvss_v3: {
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            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28706",
      },
      {
         cve: "CVE-2021-28709",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-28709",
            },
         ],
         notes: [
            {
               category: "general",
               text: "issues with partially successful P2M updates on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). In some cases the hypervisor carries out the requests by splitting them into smaller chunks. Error handling in certain PoD cases has been insufficient in that in particular partial success of some operations was not properly accounted for. There are two code paths affected - page removal (CVE-2021-28705) and insertion of new pages (CVE-2021-28709). (We provide one patch which combines the fix to both issues.)",
               title: "CVE description",
            },
         ],
         product_status: {
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            },
         ],
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            {
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         ],
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            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "moderate",
            },
         ],
         title: "CVE-2021-28709",
      },
      {
         cve: "CVE-2021-3527",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3527",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service.",
               title: "CVE description",
            },
         ],
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               category: "external",
               summary: "CVE-2021-3527",
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            {
               category: "external",
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         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 3.8,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-3527",
      },
      {
         cve: "CVE-2021-3592",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3592",
            },
         ],
         notes: [
            {
               category: "general",
               text: "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-3592",
               url: "https://www.suse.com/security/cve/CVE-2021-3592",
            },
            {
               category: "external",
               summary: "SUSE Bug 1187364 for CVE-2021-3592",
               url: "https://bugzilla.suse.com/1187364",
            },
            {
               category: "external",
               summary: "SUSE Bug 1187369 for CVE-2021-3592",
               url: "https://bugzilla.suse.com/1187369",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
               product_ids: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 3.8,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
                  version: "3.1",
               },
               products: [
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-4.4.4_50-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-doc-html-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-default-4.4.4_50_3.0.101_108.129-61.67.1.x86_64",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-kmp-pae-4.4.4_50_3.0.101_108.129-61.67.1.i586",
                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-libs-32bit-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-3592",
      },
      {
         cve: "CVE-2021-3594",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3594",
            },
         ],
         notes: [
            {
               category: "general",
               text: "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.",
               title: "CVE description",
            },
         ],
         product_status: {
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
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         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-3594",
               url: "https://www.suse.com/security/cve/CVE-2021-3594",
            },
            {
               category: "external",
               summary: "SUSE Bug 1187367 for CVE-2021-3594",
               url: "https://bugzilla.suse.com/1187367",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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         ],
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            {
               cvss_v3: {
                  baseScore: 3.8,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
                  version: "3.1",
               },
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
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            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-3594",
      },
      {
         cve: "CVE-2021-3595",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3595",
            },
         ],
         notes: [
            {
               category: "general",
               text: "An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.",
               title: "CVE description",
            },
         ],
         product_status: {
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               "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2021-3595",
               url: "https://www.suse.com/security/cve/CVE-2021-3595",
            },
            {
               category: "external",
               summary: "SUSE Bug 1187366 for CVE-2021-3595",
               url: "https://bugzilla.suse.com/1187366",
            },
            {
               category: "external",
               summary: "SUSE Bug 1187376 for CVE-2021-3595",
               url: "https://bugzilla.suse.com/1187376",
            },
         ],
         remediations: [
            {
               category: "vendor_fix",
               details: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 3.8,
                  baseSeverity: "LOW",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-4.4.4_50-61.67.1.x86_64",
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                  "SUSE Linux Enterprise Server 11 SP4-LTSS:xen-tools-domU-4.4.4_50-61.67.1.x86_64",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2021-12-01T15:57:08Z",
               details: "low",
            },
         ],
         title: "CVE-2021-3595",
      },
      {
         cve: "CVE-2021-3682",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2021-3682",
            },
         ],
         notes: [
            {
               category: "general",
               text: "A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.",
               title: "CVE description",
            },
         ],
         product_status: {
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               date: "2021-12-01T15:57:08Z",
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         ids: [
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               text: "https://www.suse.com/security/cve/CVE-2021-3930",
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               text: "An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.",
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   ],
}

CVE-2021-28701 (GCVE-0-2021-28701)

Vulnerability from cvelistv5

Published

2021-09-08 13:02

Modified

2024-08-03 21:47

Severity ?

Summary

Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-384.txt	x_refsource_MISC
	http://xenbits.xen.org/xsa/advisory-384.html	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2021/09/08/2	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L4MI3MQAPGILCLXBGQWPZHGE3ALSO4ZU/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEHZLIR5DFYYQBH55AERWHLO54OFU42C/	vendor-advisory, x_refsource_FEDORA
	https://www.debian.org/security/2021/dsa-4977	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HEHUIUWSSMCQGQY3GWX4J2SZGYP5W2Z/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-23	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.15.x < unspecified
Patch: next of xen-unstable

	Xen	xen	Version: 4.11.x
	Xen	xen	Version: 4.12.x < unspecified Patch: next of 4.14.x

Show details on NVD website

JSON

To clipboard

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                  },
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                  },
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                  },
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                     name: "FEDORA-2021-5a0c7bc619",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HEHUIUWSSMCQGQY3GWX4J2SZGYP5W2Z/",
                  },
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               },
            },
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CVE-2021-3527 (GCVE-0-2021-3527)

Vulnerability from cvelistv5

Published

2021-05-26 21:13

Modified

2024-08-03 17:01

Severity ?

Summary

A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1955695	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2021/05/05/5	x_refsource_MISC
	https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986	x_refsource_MISC
	https://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524c	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20210708-0008/	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html	mailing-list, x_refsource_MLIST
	https://security.gentoo.org/glsa/202208-27	vendor-advisory, x_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: all versions

Show details on NVD website

JSON

To clipboard

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CVE-2021-3682 (GCVE-0-2021-3682)

Vulnerability from cvelistv5

Published

2021-08-05 19:51

Modified

2024-08-03 17:01

Severity ?

Summary

A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1989651	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20210902-0006/	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2021/dsa-4980	vendor-advisory, x_refsource_DEBIAN
	https://security.gentoo.org/glsa/202208-27	vendor-advisory, x_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: qemu 6.1.0-rc2

Show details on NVD website

JSON

To clipboard

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CVE-2021-28697 (GCVE-0-2021-28697)

Vulnerability from cvelistv5

Published

2021-08-27 18:37

Modified

2024-08-03 21:47

Severity ?

Summary

grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-379.txt	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/	vendor-advisory, x_refsource_FEDORA
	https://www.debian.org/security/2021/dsa-4977	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-23	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: xen-unstable

Xen	xen	Version: 4.13.x < unspecified Patch: next of 4.14.x
Xen	xen	Version: 4.11.x < unspecified Patch: next of 4.12.x
Xen	xen	Version: 4.15.x

Show details on NVD website

JSON

To clipboard

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CVE-2021-28698 (GCVE-0-2021-28698)

Vulnerability from cvelistv5

Published

2021-08-27 18:32

Modified

2024-08-03 21:47

Severity ?

Summary

long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones which aren't in use anymore and some which may have been created but never used. If the number of entries for a given domain is large enough, this iterating of the entire table may tie up a CPU for too long, starving other domains or causing issues in the hypervisor itself. Note that a domain may map its own grants, i.e. there is no need for multiple domains to be involved here. A pair of "cooperating" guests may, however, cause the effects to be more severe.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-380.txt	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2021/09/01/2	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/	vendor-advisory, x_refsource_FEDORA
	https://www.debian.org/security/2021/dsa-4977	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-23	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.14.x

Xen	xen	Version: 4.15.x < unspecified Patch: next of xen-unstable
Xen	xen	Version: 4.13.x
Xen	xen	Version: 4.11.x
Xen	xen	Version: 4.12.x

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            },
            references: {
               reference_data: [
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                     name: "https://xenbits.xenproject.org/xsa/advisory-380.txt",
                     refsource: "MISC",
                     url: "https://xenbits.xenproject.org/xsa/advisory-380.txt",
                  },
                  {
                     name: "[oss-security] 20210901 Xen Security Advisory 380 v3 (CVE-2021-28698) - long running loops in grant table handling",
                     refsource: "MLIST",
                     url: "http://www.openwall.com/lists/oss-security/2021/09/01/2",
                  },
                  {
                     name: "FEDORA-2021-4f129cc0c1",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/",
                  },
                  {
                     name: "FEDORA-2021-d68ed12e46",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/",
                  },
                  {
                     name: "DSA-4977",
                     refsource: "DEBIAN",
                     url: "https://www.debian.org/security/2021/dsa-4977",
                  },
                  {
                     name: "FEDORA-2021-081f9bf5d2",
                     refsource: "FEDORA",
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/",
                  },
                  {
                     name: "GLSA-202208-23",
                     refsource: "GENTOO",
                     url: "https://security.gentoo.org/glsa/202208-23",
                  },
               ],
            },
            workaround: {
               workaround_data: {
                  description: {
                     description_data: [
                        {
                           lang: "eng",
                           value: "The problem can be avoided by reducing the number of grant mappings Xen\nwould allow guests to establish.  For example, setting\n\"gnttab_max_maptrack_frames=256\" on the Xen command line (available\nfrom Xen 4.5 onwards) or \"max_maptrack_frames=256\" in the xl domain\nconfigurations (available from Xen 4.10 onwards) may be low enough for\nall hardware Xen is able to run on.  Note that except for driver\ndomains, guests don't normally have a need to establish grant mappings,\ni.e. they may be okay to run with \"max_maptrack_frames=0\" in their xl\ndomain configurations.\n\n- From Xen 4.14 onwards it is also possible to alter the system wide upper\nbound of the number of grant mappings Xen would allow guests to\nestablish by writing to the /params/gnttab_max_maptrack_frames\nhypervisor file system node.  Note however that changing the value this\nway will only affect guests yet to be created on the respective host.",
                        },
                     ],
                  },
               },
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "23aa2041-22e1-471f-9209-9b7396fa234f",
      assignerShortName: "XEN",
      cveId: "CVE-2021-28698",
      datePublished: "2021-08-27T18:32:13",
      dateReserved: "2021-03-18T00:00:00",
      dateUpdated: "2024-08-03T21:47:33.154Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

CVE-2021-28690 (GCVE-0-2021-28690)

Vulnerability from cvelistv5

Published

2021-06-29 11:16

Modified

2024-08-03 21:47

Severity ?

Summary

x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-377.txt	x_refsource_MISC
	https://security.gentoo.org/glsa/202107-30	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.13.x < unspecified
Patch: next of xen-unstable

	Xen	xen	Version: 4.12.x
	Xen	xen	Version: 4.11.x

Show details on NVD website

JSON

To clipboard

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            },
         ],
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                              lang: "eng",
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                           },
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            },
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                     lang: "en",
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            dateUpdated: "2021-07-12T04:06:32",
            orgId: "23aa2041-22e1-471f-9209-9b7396fa234f",
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            },
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                  },
                  {
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                     refsource: "GENTOO",
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CVE-2021-28703 (GCVE-0-2021-28703)

Vulnerability from cvelistv5

Published

2021-12-07 00:00

Modified

2024-08-03 21:47

Severity ?

Summary

grant table v2 status pages may remain accessible after de-allocation (take two) Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes. This bug was fortuitously fixed by code cleanup in Xen 4.14, and backported to security-supported Xen branches as a prerequisite of the fix for XSA-378.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-387.txt
	https://security.gentoo.org/glsa/202402-07	vendor-advisory

Impacted products

	Vendor	Product	Version
	Xen Project	Xen	Version: Branch 4.13 <

Show details on NVD website

JSON

To clipboard

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T21:47:33.183Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
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               vendor: "Xen Project",
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                  },
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                  },
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         ],
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               lang: "en",
               value: "{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Patryk Balicki and Julien Grall of Amazon.'}]}}}",
            },
         ],
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               lang: "en",
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            },
         ],
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            {
               other: {
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                        description_data: [
                           {
                              lang: "eng",
                              value: "A malicious guest may be able to elevate its privileges to that of the\nhost, cause host or guest Denial of Service (DoS), or cause information\nleaks.",
                           },
                        ],
                     },
                  },
                  type: "unknown",
               },
            },
         ],
         problemTypes: [
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               descriptions: [
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                     description: "unknown",
                     lang: "en",
                     type: "text",
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            dateUpdated: "2024-02-04T08:06:29.390082",
            orgId: "23aa2041-22e1-471f-9209-9b7396fa234f",
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               url: "https://xenbits.xenproject.org/xsa/advisory-387.txt",
            },
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               name: "GLSA-202402-07",
               tags: [
                  "vendor-advisory",
               ],
               url: "https://security.gentoo.org/glsa/202402-07",
            },
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      dateReserved: "2021-03-18T00:00:00",
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CVE-2021-28706 (GCVE-0-2021-28706)

Vulnerability from cvelistv5

Published

2021-11-24 00:00

Modified

2024-08-03 21:47

Severity ?

Summary

guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-385.txt
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/	vendor-advisory
	https://www.debian.org/security/2021/dsa-5017	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/	vendor-advisory
	https://security.gentoo.org/glsa/202402-07	vendor-advisory

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.12.x

Xen	xen	Version: 4.14.x < unspecified Patch: next of 4.15.x
Xen	xen	Version: xen-unstable
Xen	xen	Version: 4.13.x

Show details on NVD website

JSON

To clipboard

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   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T21:47:33.187Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
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               },
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                  tags: [
                     "vendor-advisory",
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                  url: "https://security.gentoo.org/glsa/202402-07",
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               vendor: "Xen",
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CVE-2021-3592 (GCVE-0-2021-3592)

Vulnerability from cvelistv5

Published

2021-06-15 00:00

Modified

2024-08-03 17:01

Severity ?

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the bootp_input() function and could occur while processing a udp packet that is smaller than the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of uninitialized heap memory from the host. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1970484
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-20210805-0004/
	https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2021/09/msg00004.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-3930 (GCVE-0-2021-3930)

Vulnerability from cvelistv5

Published

2022-02-18 17:50

Modified

2024-08-03 17:09

Severity ?

Summary

An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=2020588	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220225-0007/	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html	mailing-list, x_refsource_MLIST
	https://security.gentoo.org/glsa/202208-27	vendor-advisory, x_refsource_GENTOO
	https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: qemu-kvm 6.2.0-rc0

Show details on NVD website

JSON

To clipboard

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CVE-2021-0089 (GCVE-0-2021-0089)

Vulnerability from cvelistv5

Published

2021-06-09 19:07

Modified

2024-08-03 15:25

Severity ?

Summary

Observable response discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

References

▼	URL	Tags
	https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2021/06/10/1	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/06/10/10	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/06/10/11	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2021/dsa-4931	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202107-30	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	n/a	Intel(R) Processors	Version: See references

Show details on NVD website

JSON

To clipboard

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CVE-2021-28705 (GCVE-0-2021-28705)

Vulnerability from cvelistv5

Published

2021-11-24 00:00

Modified

2024-08-03 21:47

Severity ?

Summary

issues with partially successful P2M updates on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). In some cases the hypervisor carries out the requests by splitting them into smaller chunks. Error handling in certain PoD cases has been insufficient in that in particular partial success of some operations was not properly accounted for. There are two code paths affected - page removal (CVE-2021-28705) and insertion of new pages (CVE-2021-28709). (We provide one patch which combines the fix to both issues.)

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-389.txt
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/	vendor-advisory
	https://www.debian.org/security/2021/dsa-5017	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/	vendor-advisory
	https://security.gentoo.org/glsa/202402-07	vendor-advisory

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.14.x

Xen	xen	Version: 4.12.x
Xen	xen	Version: 4.15.x
Xen	xen	Version: xen-unstable
Xen	xen	Version: 4.13.x

Show details on NVD website

JSON

To clipboard

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CVE-2021-20255 (GCVE-0-2021-20255)

Vulnerability from cvelistv5

Published

2021-03-09 19:14

Modified

2024-08-03 17:37

Severity ?

Summary

A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1930646	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2021/02/25/1	x_refsource_MISC
	https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Feepro100_stackoverflow1	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html	mailing-list, x_refsource_MLIST
	https://security.netapp.com/advisory/ntap-20210507-0003/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: all versions

Show details on NVD website

JSON

To clipboard

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CVE-2021-28709 (GCVE-0-2021-28709)

Vulnerability from cvelistv5

Published

2021-11-24 00:00

Modified

2024-08-03 21:47

Severity ?

Summary

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-389.txt
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/	vendor-advisory
	https://www.debian.org/security/2021/dsa-5017	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/	vendor-advisory
	https://security.gentoo.org/glsa/202402-07	vendor-advisory

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.14.x

Xen	xen	Version: 4.12.x
Xen	xen	Version: 4.15.x
Xen	xen	Version: xen-unstable
Xen	xen	Version: 4.13.x

Show details on NVD website

JSON

To clipboard

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CVE-2021-3594 (GCVE-0-2021-3594)

Vulnerability from cvelistv5

Published

2021-06-15 00:00

Modified

2024-08-03 17:01

Severity ?

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1970491
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-20210805-0004/
	https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-3595 (GCVE-0-2021-3595)

Vulnerability from cvelistv5

Published

2021-06-15 00:00

Modified

2024-08-03 17:01

Severity ?

Summary

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1970489
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/	vendor-advisory
	https://security.gentoo.org/glsa/202107-44	vendor-advisory
	https://security.netapp.com/advisory/ntap-20210805-0004/
	https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html	mailing-list

Impacted products

	Vendor	Product	Version
	n/a	QEMU	Version: libslirp 4.6.0

Show details on NVD website

JSON

To clipboard

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CVE-2021-28692 (GCVE-0-2021-28692)

Vulnerability from cvelistv5

Published

2021-06-30 10:27

Modified

2024-08-03 21:47

Severity ?

Summary

inappropriate x86 IOMMU timeout detection / handling IOMMUs process commands issued to them in parallel with the operation of the CPU(s) issuing such commands. In the current implementation in Xen, asynchronous notification of the completion of such commands is not used. Instead, the issuing CPU spin-waits for the completion of the most recently issued command(s). Some of these waiting loops try to apply a timeout to fail overly-slow commands. The course of action upon a perceived timeout actually being detected is inappropriate: - on Intel hardware guests which did not originally cause the timeout may be marked as crashed, - on AMD hardware higher layer callers would not be notified of the issue, making them continue as if the IOMMU operation succeeded.

References

▼	URL	Tags
	https://xenbits.xenproject.org/xsa/advisory-373.txt	x_refsource_MISC
	https://security.gentoo.org/glsa/202107-30	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

Xen

xen

Version: 4.13.x

Xen	xen	Version: 4.14.x
Xen	xen	Version: 4.15.x
Xen	xen	Version: xen-unstable
Xen	xen	Version: 4.12.x
Xen	xen	Version: 4.11.x

Show details on NVD website

JSON

To clipboard

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               reference_data: [
                  {
                     name: "https://xenbits.xenproject.org/xsa/advisory-373.txt",
                     refsource: "MISC",
                     url: "https://xenbits.xenproject.org/xsa/advisory-373.txt",
                  },
                  {
                     name: "GLSA-202107-30",
                     refsource: "GENTOO",
                     url: "https://security.gentoo.org/glsa/202107-30",
                  },
               ],
            },
            workaround: {
               workaround_data: {
                  description: {
                     description_data: [
                        {
                           lang: "eng",
                           value: "Not passing through physical devices to untrusted guests will avoid\nthe vulnerability.",
                        },
                     ],
                  },
               },
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "23aa2041-22e1-471f-9209-9b7396fa234f",
      assignerShortName: "XEN",
      cveId: "CVE-2021-28692",
      datePublished: "2021-06-30T10:27:57",
      dateReserved: "2021-03-18T00:00:00",
      dateUpdated: "2024-08-03T21:47:33.190Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

Vulnerability from csaf_suse

CVE-2021-28701 (GCVE-0-2021-28701)

Vulnerability from cvelistv5

CVE-2021-3527 (GCVE-0-2021-3527)

Vulnerability from cvelistv5

CVE-2021-3682 (GCVE-0-2021-3682)

Vulnerability from cvelistv5

CVE-2021-28697 (GCVE-0-2021-28697)

Vulnerability from cvelistv5

CVE-2021-28698 (GCVE-0-2021-28698)

Vulnerability from cvelistv5

CVE-2021-28690 (GCVE-0-2021-28690)

Vulnerability from cvelistv5

CVE-2021-28703 (GCVE-0-2021-28703)

Vulnerability from cvelistv5

CVE-2021-28706 (GCVE-0-2021-28706)

Vulnerability from cvelistv5

CVE-2021-3592 (GCVE-0-2021-3592)

Vulnerability from cvelistv5

CVE-2021-3930 (GCVE-0-2021-3930)

Vulnerability from cvelistv5

CVE-2021-0089 (GCVE-0-2021-0089)

Vulnerability from cvelistv5

CVE-2021-28705 (GCVE-0-2021-28705)

Vulnerability from cvelistv5

CVE-2021-20255 (GCVE-0-2021-20255)

Vulnerability from cvelistv5

CVE-2021-28709 (GCVE-0-2021-28709)

Vulnerability from cvelistv5

CVE-2021-3594 (GCVE-0-2021-3594)

Vulnerability from cvelistv5

CVE-2021-3595 (GCVE-0-2021-3595)

Vulnerability from cvelistv5

CVE-2021-28692 (GCVE-0-2021-28692)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature