Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP2)

Announcement ID: SUSE-SU-2020:3181-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-25212 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-25212 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Live Patching 15-SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2

An update that solves one vulnerability can now be installed.

Description:

This update for the Linux Kernel 5.3.18-24_15 fixes one issue.

The following security issue was fixed:

  • CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c (bsc#1176381).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Live Patching 15-SP2
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2020-3182=1 SUSE-SLE-Module-Live-Patching-15-SP2-2020-3181=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP2 (ppc64le s390x x86_64)
    • kernel-livepatch-SLE15-SP2_Update_3-debugsource-2-2.1
    • kernel-livepatch-5_3_18-24_15-default-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-24_24-default-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-24_24-default-2-2.1
    • kernel-livepatch-SLE15-SP2_Update_4-debugsource-2-2.1
    • kernel-livepatch-5_3_18-24_15-default-2-2.1

References: