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

Announcement ID: SUSE-SU-2018:2473-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2018-3646 ( SUSE ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2018-3646 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise High Performance Computing 15
  • SUSE Linux Enterprise Live Patching 15
  • SUSE Linux Enterprise Live Patching 12-SP3
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server 15
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 15

An update that solves one vulnerability can now be installed.

Description:

This update for the Linux Kernel 4.12.14-25_6 fixes one issue.

The following security issue was fixed:

  • CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system (bsc#1099306).

Patch Instructions:

To install this SUSE 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 15
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-1738=1 SUSE-SLE-Module-Live-Patching-15-2018-1687=1
  • SUSE Linux Enterprise Live Patching 12-SP3
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-1683=1 SUSE-SLE-Live-Patching-12-SP3-2018-1682=1

Package List:

  • SUSE Linux Enterprise Live Patching 15 (ppc64le x86_64)
    • kernel-livepatch-4_12_14-25_6-default-debuginfo-2-2.1
    • kernel-livepatch-tools-1.1-5.3.1
    • kernel-livepatch-4_12_14-25_6-default-2-2.1
  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64)
    • kgraft-patch-4_4_138-94_39-default-2-2.1
    • kgraft-patch-4_4_140-94_42-default-debuginfo-2-2.1
    • kgraft-patch-4_4_138-94_39-default-debuginfo-2-2.1
    • kgraft-patch-4_4_140-94_42-default-2-2.1

References: