SUSE-SU-2023:4280-1

Vulnerability from csaf_suse - Published: 2023-10-30 21:33 - Updated: 2026-09-20 15:28
Summary
Security update for the Linux Kernel (Live Patch 44 for SLE 15 SP1)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 44 for SLE 15 SP1)
Description of the patch: This update for the Linux Kernel 4.12.14-150100_197_157 fixes several issues. The following security issues were fixed: - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440). - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). - CVE-2023-1281: Fixed use after free that could lead to privilege escalation in tcindex (bsc#1209683).
Patchnames: SUSE-2023-4280,SUSE-SLE-Module-Live-Patching-15-SP1-2023-4280
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2023-1281
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2023-1829
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 2 products, the same list as for CVE-2023-1281
Threats
Impact important
CVE-2023-4623
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 2 products, the same list as for CVE-2023-1281
Threats
Impact important
References
To clipboard 

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  "vulnerabilities": [
    {
      "cve": "CVE-2023-1281",
      "ids": [
        {
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          "text": "https://www.suse.com/security/cve/CVE-2023-1281"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation.  The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when \u0027tcf_exts_exec()\u0027 is called with the destroyed tcf_ext.  A local attacker user can use this vulnerability to elevate its privileges to root.\n\n\nThis issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.",
          "title": "CVE description"
        }
      ],
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        {
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        {
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          "summary": "SUSE Bug 1210423 for CVE-2023-1281",
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        {
          "category": "external",
          "summary": "SUSE Bug 1211833 for CVE-2023-1281",
          "url": "https://bugzilla.suse.com/1211833"
        }
      ],
      "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 Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.x86_64"
          ]
        }
      ],
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            "baseSeverity": "HIGH",
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          "date": "2023-10-30T21:33:35Z",
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      "title": "CVE-2023-1281"
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2023-1829"
        }
      ],
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        {
          "category": "general",
          "text": "A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation.  The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure.  A local attacker user can use this vulnerability to elevate its privileges to root.\n\n\nWe recommend upgrading past commit   8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ .",
          "title": "CVE description"
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        },
        {
          "category": "external",
          "summary": "SUSE Bug 1210335 for CVE-2023-1829",
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        },
        {
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          "summary": "SUSE Bug 1210619 for CVE-2023-1829",
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        },
        {
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        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217531 for CVE-2023-1829",
          "url": "https://bugzilla.suse.com/1217531"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1220886 for CVE-2023-1829",
          "url": "https://bugzilla.suse.com/1220886"
        },
        {
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          "summary": "SUSE Bug 1228311 for CVE-2023-1829",
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        }
      ],
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2023-4623"
        }
      ],
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        {
          "category": "general",
          "text": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.\n\nIf a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.\n\nWe recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.",
          "title": "CVE description"
        }
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          "summary": "SUSE Bug 1215115 for CVE-2023-4623",
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          "url": "https://bugzilla.suse.com/1215440"
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          "url": "https://bugzilla.suse.com/1217444"
        },
        {
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          "summary": "SUSE Bug 1217531 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1217531"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1219698 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1219698"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221578 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221578"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221598 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221598"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.x86_64"
          ]
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            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_157-default-0:2-150100.2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-10-30T21:33:35Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4623"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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