suse-su-2021:0809-1
Vulnerability from csaf_suse
Published
2021-03-17 16:24
Modified
2021-03-17 16:24
Summary
Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP1)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP1)
Description of the patch
This update for the Linux Kernel 4.12.14-197_78 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553). - CVE-2020-27786: Fixed a potential user after free which could have led to memory corruption or privilege escalation (bsc#1179616). - CVE-2021-0342: Fixed a potential memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges required (bsc#1180859).
Patchnames
SUSE-2021-809,SUSE-SLE-Live-Patching-12-SP5-2021-809,SUSE-SLE-Module-Live-Patching-15-SP1-2021-851
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": "https://www.suse.com/security/cve/CVE-2020-27786"
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      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in the Linux kernel\u0027s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "title": "CVE description"
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          "text": "An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.",
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          "text": "https://www.suse.com/security/cve/CVE-2021-0342"
        }
      ],
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          "category": "general",
          "text": "In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges required. User interaction is not required for exploitation. Product: Android; Versions: Android kernel; Android ID: A-146554327.",
          "title": "CVE description"
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          "url": "https://www.suse.com/security/cve/CVE-2021-0342"
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          "products": [
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:32Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-0342"
    },
    {
      "cve": "CVE-2021-3347",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-3347"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.s390x",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.x86_64",
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-3347",
          "url": "https://www.suse.com/security/cve/CVE-2021-3347"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1181349 for CVE-2021-3347",
          "url": "https://bugzilla.suse.com/1181349"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1181553 for CVE-2021-3347",
          "url": "https://bugzilla.suse.com/1181553"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1190859 for CVE-2021-3347",
          "url": "https://bugzilla.suse.com/1190859"
        }
      ],
      "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 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_57-default-3-2.2.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_78-default-3-2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-17T16:24:32Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-3347"
    }
  ]
}


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