Security update for xen

Announcement ID: SUSE-SU-2018:2410-2
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 Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2
  • SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2

An update that solves one vulnerability and has two security fixes can now be installed.

Description:

This update for xen fixes the following security issues:

  • CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis (bsc#1091107, bsc#1027519).
  • Incorrect MSR_DEBUGCTL handling let guests enable BTS allowing a malicious or buggy guest administrator can lock up the entire host (bsc#1103276)

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 Server 12 SP2 BCL 12-SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-1664=1
  • SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-ESPOS-2018-1664=1

Package List:

  • SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
    • xen-libs-debuginfo-4.7.6_04-43.39.1
    • xen-debugsource-4.7.6_04-43.39.1
    • xen-libs-debuginfo-32bit-4.7.6_04-43.39.1
    • xen-tools-domU-debuginfo-4.7.6_04-43.39.1
    • xen-doc-html-4.7.6_04-43.39.1
    • xen-tools-debuginfo-4.7.6_04-43.39.1
    • xen-libs-4.7.6_04-43.39.1
    • xen-4.7.6_04-43.39.1
    • xen-tools-domU-4.7.6_04-43.39.1
    • xen-libs-32bit-4.7.6_04-43.39.1
    • xen-tools-4.7.6_04-43.39.1
  • SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (x86_64)
    • xen-libs-debuginfo-4.7.6_04-43.39.1
    • xen-debugsource-4.7.6_04-43.39.1
    • xen-libs-debuginfo-32bit-4.7.6_04-43.39.1
    • xen-tools-domU-debuginfo-4.7.6_04-43.39.1
    • xen-doc-html-4.7.6_04-43.39.1
    • xen-tools-debuginfo-4.7.6_04-43.39.1
    • xen-libs-4.7.6_04-43.39.1
    • xen-4.7.6_04-43.39.1
    • xen-tools-domU-4.7.6_04-43.39.1
    • xen-libs-32bit-4.7.6_04-43.39.1
    • xen-tools-4.7.6_04-43.39.1

References: