suse-su-2021:2067-1
Vulnerability from csaf_suse
Published
2021-06-18 09:40
Modified
2021-06-18 09:40
Summary
Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP2)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP2)
Description of the patch
This update for the Linux Kernel 5.3.18-24_61 fixes several issues. The following issues were fixed: - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060). - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611). - Fixed a data loss/data corruption that occurs if there is a write error on an md/raid array (bsc#1185680).
Patchnames
SUSE-2021-2067,SUSE-SLE-Live-Patching-12-SP5-2021-2067,SUSE-SLE-Module-Live-Patching-15-SP2-2021-2028
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": "Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.",
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          "text": "https://www.suse.com/security/cve/CVE-2021-33034"
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          "text": "In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.",
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        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-33034",
          "url": "https://www.suse.com/security/cve/CVE-2021-33034"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186111 for CVE-2021-33034",
          "url": "https://bugzilla.suse.com/1186111"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186285 for CVE-2021-33034",
          "url": "https://bugzilla.suse.com/1186285"
        }
      ],
      "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_66-default-3-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_66-default-3-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_66-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_66-default-3-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_66-default-3-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_66-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_61-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-06-18T09:40:57Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-33034"
    }
  ]
}


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