Security update for the Linux Kernel (Live Patch 23 for SLE 15)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 23 for SLE 15)
Announcement ID: SUSE-SU-2021:1347-1
Rating: important
References: #1182294 #1184171
Cross-References:CVE-2021-28688 CVE-2021-3444
Affected Products:
  • SUSE Linux Enterprise Module for Live Patching 15
  • SUSE Linux Enterprise Live Patching 12-SP4

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-150_69 fixes several issues.
The following security issues were fixed:

  • CVE-2021-3444: Fixed an issue with the bpf verifier which did not properly handle mod32 destination register truncation when the source register was known to be 0 leading to out of bounds read (bsc#1184171).
  • CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc##1182294, bsc#1183646).

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:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-1364=1
  • SUSE Linux Enterprise Live Patching 12-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-1347=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
    • kernel-livepatch-4_12_14-150_69-default-3-2.2
    • kernel-livepatch-4_12_14-150_69-default-debuginfo-3-2.2
  • SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le x86_64):
    • kgraft-patch-4_12_14-95_71-default-3-2.2

References: