Security update for kgraft

Announcement ID: SUSE-SU-2018:2394-1
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 SP2
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise Live Patching 12-SP3
  • SUSE Linux Enterprise Live Patching 12
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3

An update that solves one vulnerability can now be installed.

Description:

This update for kgraft fixes the following issues:

Add script for disabling SMT to help with the mitigation of the "L1 Terminal Fault" issue (CVE-2018-3646 bsc#1099306)

The script is called "klp-kvm-l1tf-ctrl-smt" and is used for enabling or disabling SMT to mitigate the issue when this administrative decision is taken.

Disabling SMT:

klp-kvm-l1tf-ctrl-smt -d

Enabling SMT:

klp-kvm-l1tf-ctrl-smt -e

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 12
    zypper in -t patch SUSE-SLE-Live-Patching-12-2018-1637=1
  • SUSE Linux Enterprise Live Patching 12-SP3
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-1637=1

Package List:

  • SUSE Linux Enterprise Live Patching 12 (ppc64le x86_64)
    • kgraft-1.0-23.9.1
  • SUSE Linux Enterprise Live Patching 12 (x86_64)
    • kgraft-devel-1.0-23.9.1
  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64)
    • kgraft-1.0-23.9.1

References: