Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP2)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP2)
Announcement ID: SUSE-SU-2020:3186-1
Rating: important
References: #1176072 #1176382
Cross-References:CVE-2020-14386 CVE-2020-25212
Affected Products:
  • SUSE Linux Enterprise Module for Live Patching 15-SP2

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 5.3.18-24_12 fixes several issues.
The following security issues were 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).
  • CVE-2020-14386: Fixed a memory corruption which could have lead to an attacker gaining root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity (bsc#1176069).

Patch Instructions:

To install this SUSE Security 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 Module for Live Patching 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2020-3184=1 SUSE-SLE-Module-Live-Patching-15-SP2-2020-3186=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):
    • kernel-livepatch-5_3_18-24_12-default-2-2.1
    • kernel-livepatch-5_3_18-24_12-default-debuginfo-2-2.1
    • kernel-livepatch-5_3_18-24_9-default-3-2.1
    • kernel-livepatch-5_3_18-24_9-default-debuginfo-3-2.1
    • kernel-livepatch-SLE15-SP2_Update_1-debugsource-3-2.1
    • kernel-livepatch-SLE15-SP2_Update_2-debugsource-2-2.1

References: