Vulnerability from csaf_suse
Published
2023-10-20 09:34
Modified
2023-10-20 09:34
Summary
Security update for grub2

Notes

Title of the patch
Security update for grub2
Description of the patch
This update for grub2 fixes the following issues: Security fixes: - CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. (bsc#1215935) - CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. (bsc#1215936) Other fixes: - Fix a boot delay issue in PowerPC PXE boot (bsc#1201300)
Patchnames
SUSE-2023-4140,SUSE-SLE-Micro-5.3-2023-4140,SUSE-SLE-Micro-5.4-2023-4140,SUSE-SLE-Module-Basesystem-15-SP4-2023-4140,SUSE-SLE-Module-SUSE-Manager-Proxy-4.3-2023-4140,SUSE-SLE-Module-Server-Applications-15-SP4-2023-4140
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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            text: "This update for grub2 fixes the following issues:\n\nSecurity fixes:\n- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. (bsc#1215935)\n- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. (bsc#1215936)\n\nOther fixes:\n- Fix a boot delay issue in PowerPC PXE boot (bsc#1201300)\n",
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               title: "CVE description",
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         ],
         threats: [
            {
               category: "impact",
               date: "2023-10-20T09:34:14Z",
               details: "important",
            },
         ],
         title: "CVE-2023-4692",
      },
      {
         cve: "CVE-2023-4693",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2023-4693",
            },
         ],
         notes: [
            {
               category: "general",
               text: "An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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         references: [
            {
               category: "external",
               summary: "CVE-2023-4693",
               url: "https://www.suse.com/security/cve/CVE-2023-4693",
            },
            {
               category: "external",
               summary: "SUSE Bug 1215936 for CVE-2023-4693",
               url: "https://bugzilla.suse.com/1215936",
            },
         ],
         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: 5.5,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  version: "3.1",
               },
               products: [
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         ],
         threats: [
            {
               category: "impact",
               date: "2023-10-20T09:34:14Z",
               details: "moderate",
            },
         ],
         title: "CVE-2023-4693",
      },
   ],
}


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Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




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.