Security update for the Linux Kernel (Live Patch 20 for SLE 15)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 20 for SLE 15)
Announcement ID: SUSE-SU-2020:3178-1
Rating: important
References: #1173942 #1176012 #1176382 #1176896
Cross-References:CVE-2020-0431 CVE-2020-11668 CVE-2020-14381 CVE-2020-25212
Affected Products:
  • SUSE Linux Enterprise Module for Live Patching 15

An update that fixes four vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-150_58 fixes several issues.
The following security issues were fixed:

  • CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait operation, which could have lead to memory corruption and possibly privilege escalation (bsc#1176011).
  • CVE-2020-0431: In kbd_keycode of keyboard.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bsc#1176722)
  • 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-2020-11668: Fixed an out of bounds write to the heap in drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) caused by mishandling invalid descriptors (bsc#1168952).

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-15-2020-3178=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
    • kernel-livepatch-4_12_14-150_58-default-2-2.1
    • kernel-livepatch-4_12_14-150_58-default-debuginfo-2-2.1

References: