Security update for the Linux Kernel (Live Patch 15 for SLE 12 SP3)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 15 for SLE 12 SP3)
Announcement ID: SUSE-SU-2018:2963-1
Rating: important
References: #1099306 #1102682 #1103203 #1105323 #1106191
Cross-References: CVE-2018-10902 CVE-2018-10938 CVE-2018-3646 CVE-2018-5390
Affected Products:
  • SUSE Linux Enterprise Live Patching 12-SP3

An update that solves four vulnerabilities and has one errata is now available.

Description:

This update for the Linux Kernel 4.4.140-94_42 fixes several issues.
The following security issues were fixed:

  • CVE-2018-5390: Prevent very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming TCP packet which can lead to a denial of service (bsc#1102682).
  • CVE-2018-10938: Fixed an infinite loop in the cipso_v4_optptr() function leading to a denial-of-service via crafted network packets (bsc#1106191).
  • CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which lead to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status(), allowing a malicious local attacker to use this for privilege escalation (bsc#1105323).
  • CVE-2018-3646: Fixed unauthorized disclosure of information residing in the L1 data cache on systems with microprocessors utilizing speculative execution and address translations (bsc#1099306).

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 Live Patching 12-SP3:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-2108=1 SUSE-SLE-Live-Patching-12-SP3-2018-2109=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):
    • kgraft-patch-4_4_138-94_39-default-3-2.1
    • kgraft-patch-4_4_138-94_39-default-debuginfo-3-2.1
    • kgraft-patch-4_4_140-94_42-default-3-2.1
    • kgraft-patch-4_4_140-94_42-default-debuginfo-3-2.1

References: