csaf_redhat - rhsa-2021

rhsa-2021_3321

Vulnerability from csaf_redhat

Published

2021-08-31 08:15

Modified

2024-09-13 20:29

Summary

Red Hat Security Advisory: kernel security and bug fix update

Notes

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555) * kernel: race condition for removal of the HCI controller (CVE-2021-32399) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap [7.9.z] (BZ#1975162)

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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        "text": "An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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        "text": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)\n\n* kernel: race condition for removal of the HCI controller (CVE-2021-32399)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap [7.9.z] (BZ#1975162)",
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          "title": "Vulnerability description"
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          "text": "kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c",
          "title": "Vulnerability summary"
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          "category": "other",
          "text": "For the Red Hat Enterprise Linux 7 only privileged user can trigger this bug.\nFor the Red Hat Enterprise Linux 8 regular user can trigger it, and the result is corruption of 4 bytes of memory.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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      "title": "kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c"
    },
    {
      "cve": "CVE-2021-32399",
      "cwe": {
        "id": "CWE-362",
        "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
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          "text": "1970807"
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      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Linux kernel\u2019s handling of the removal of Bluetooth HCI controllers. This flaw allows an attacker with a local account to exploit a race condition, leading to corrupted memory and possible privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: race condition for removal of the HCI controller",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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cve-2021-22555

Vulnerability from cvelistv5

Published

2021-07-07 11:20

Modified

2024-09-16 20:32

Severity

8.3 (High) - cvssV3_1 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE

References

URL	Tags
https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=9fa492cdc160cd27ce1046cb36f47d3b2b1efa21	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=b29c457a6511435960115c0f548c4360d5f4801d	x_refsource_MISC
http://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210805-0010/	x_refsource_CONFIRM
http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html	x_refsource_MISC
http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html	x_refsource_MISC
http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html	x_refsource_MISC
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html	x_refsource_MISC

Impacted products

Vendor	Product
n/a	Linux Kernel

Show details on NVD website

JSON

To clipboard

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                            "version_value": "2.6.19-rc1"
                          }
                        ]
                      }
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                  ]
                },
                "vendor_name": "n/a"
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            ]
          }
        },
        "credit": [
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          }
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space"
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
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        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-787 Out-of-bounds Write"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528",
              "refsource": "MISC",
              "url": "https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528"
            },
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              "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=9fa492cdc160cd27ce1046cb36f47d3b2b1efa21",
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              "url": "https://security.netapp.com/advisory/ntap-20210805-0010/"
            },
            {
              "name": "http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html"
            },
            {
              "name": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html"
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              "name": "http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html",
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              "url": "http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html"
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              "name": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html",
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              "url": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html"
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        },
        "source": {
          "discovery": "UNKNOWN"
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  "cveMetadata": {
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    "assignerShortName": "Google",
    "cveId": "CVE-2021-22555",
    "datePublished": "2021-07-07T11:20:10.668788Z",
    "dateReserved": "2021-01-05T00:00:00",
    "dateUpdated": "2024-09-16T20:32:08.247Z",
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cve-2021-32399

Vulnerability from cvelistv5

Published

2021-05-10 21:19

Modified

2024-08-03 23:17

Severity

Summary

net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.

References

URL	Tags
https://github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80	x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e2cb6b891ad2b8caa9131e3be70f45243df82a80	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/05/11/2	mailing-list, x_refsource_MLIST
https://security.netapp.com/advisory/ntap-20210622-0006/	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html	mailing-list, x_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html	mailing-list, x_refsource_MLIST

Impacted products

Vendor	Product
n/a	n/a

Show details on NVD website

JSON

To clipboard

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Action not permitted

rhsa-2021_3321

Vulnerability from csaf_redhat

cve-2021-22555

Vulnerability from cvelistv5

cve-2021-32399

Vulnerability from cvelistv5

Tags