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

SUSE Security Update: Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP2)
Announcement ID: SUSE-SU-2021:0367-1
Rating: important
References: #1179664 #1179779 #1179877 #1180008 #1180030 #1180032 #1180562
Cross-References:CVE-2020-0465 CVE-2020-0466 CVE-2020-29368 CVE-2020-29373 CVE-2020-29569 CVE-2020-29660 CVE-2020-29661 CVE-2020-36158
Affected Products:
  • SUSE Linux Enterprise Module for Live Patching 15-SP2

An update that fixes 8 vulnerabilities is now available.


This update for the Linux Kernel 5.3.18-24_15 fixes several issues.
The following security issues were fixed:

  • CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations (bsc#1179779).
  • CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180562).
  • CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180030).
  • CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180032.
  • CVE-2020-29569: Fixed a use after free due to a logic error (bsc#1180008).
  • CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bsc#1179877).
  • CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179877).
  • CVE-2020-29368: Fixed an issue in copy-on-write implementation which could grant unintended write access because of a race condition in a THP mapcount check (bsc#1179664).

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-SP2-2021-365=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-366=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-367=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-368=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):
    • kernel-livepatch-5_3_18-22-default-7-5.2
    • kernel-livepatch-5_3_18-22-default-debuginfo-7-5.2
    • kernel-livepatch-5_3_18-24_12-default-5-2.1
    • kernel-livepatch-5_3_18-24_12-default-debuginfo-5-2.1
    • kernel-livepatch-5_3_18-24_15-default-5-2.1
    • kernel-livepatch-5_3_18-24_15-default-debuginfo-5-2.1
    • kernel-livepatch-5_3_18-24_9-default-6-2.1
    • kernel-livepatch-5_3_18-24_9-default-debuginfo-6-2.1
    • kernel-livepatch-SLE15-SP2_Update_0-debugsource-7-5.2
    • kernel-livepatch-SLE15-SP2_Update_1-debugsource-6-2.1
    • kernel-livepatch-SLE15-SP2_Update_2-debugsource-5-2.1
    • kernel-livepatch-SLE15-SP2_Update_3-debugsource-5-2.1