suse-su-2023:4802-1
Vulnerability from csaf_suse
Published
2023-12-13 18:09
Modified
2023-12-13 18:09
Summary
Security update for the Linux Kernel (Live Patch 38 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 38 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-150200_24_157 fixes several issues. The following security issues were fixed: - CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215442). - CVE-2023-2163: Fixed an incorrect verifier pruning in BPF that could lead to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. (bsc#1215519)
Patchnames
SUSE-2023-4802,SUSE-SLE-Module-Live-Patching-15-SP2-2023-4814
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


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{
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      "text": "important"
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    "category": "csaf_security_advisory",
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    "distribution": {
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        "title": "Description of the patch"
      },
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        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
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      },
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    "title": "Security update for the Linux Kernel (Live Patch 38 for SLE 15 SP2)",
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  "vulnerabilities": [
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      "cve": "CVE-2023-2163",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-2163"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Incorrect verifier pruning  in BPF in Linux Kernel  \u003e=5.4  leads to unsafe\ncode paths being incorrectly marked as safe, resulting in  arbitrary read/write in\nkernel memory, lateral privilege escalation, and container escape.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.x86_64"
        ]
      },
      "references": [
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          "summary": "CVE-2023-2163",
          "url": "https://www.suse.com/security/cve/CVE-2023-2163"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215518 for CVE-2023-2163",
          "url": "https://bugzilla.suse.com/1215518"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215519 for CVE-2023-2163",
          "url": "https://bugzilla.suse.com/1215519"
        }
      ],
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.x86_64"
          ]
        }
      ],
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.x86_64"
          ]
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2023-4622"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free vulnerability in the Linux kernel\u0027s af_unix component can be exploited to achieve local privilege escalation.\n\nThe unix_stream_sendpage() function tries to add data to the last skb in the peer\u0027s recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.\n\nWe recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-4622",
          "url": "https://www.suse.com/security/cve/CVE-2023-4622"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1215117 for CVE-2023-4622",
          "url": "https://bugzilla.suse.com/1215117"
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        {
          "category": "external",
          "summary": "SUSE Bug 1215442 for CVE-2023-4622",
          "url": "https://bugzilla.suse.com/1215442"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217531 for CVE-2023-4622",
          "url": "https://bugzilla.suse.com/1217531"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1219699 for CVE-2023-4622",
          "url": "https://bugzilla.suse.com/1219699"
        }
      ],
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        {
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            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-150200_24_157-default-5-150200.2.1.x86_64"
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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          "date": "2023-12-13T18:09:15Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4622"
    }
  ]
}


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