Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2018:2409-1
Rating: important
References: #1027519 #1091107 #1103276
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15
  • SUSE Linux Enterprise Module for Basesystem 15

  • An update that solves one vulnerability and has two fixes is now available.

    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 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 Server Applications 15:
      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2018-1663=1
    • SUSE Linux Enterprise Module for Basesystem 15:
      zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-1663=1

    Package List:

    • SUSE Linux Enterprise Module for Server Applications 15 (x86_64):
      • xen-4.10.1_08-3.6.1
      • xen-debugsource-4.10.1_08-3.6.1
      • xen-devel-4.10.1_08-3.6.1
      • xen-tools-4.10.1_08-3.6.1
      • xen-tools-debuginfo-4.10.1_08-3.6.1
    • SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
      • xen-debugsource-4.10.1_08-3.6.1
      • xen-libs-4.10.1_08-3.6.1
      • xen-libs-debuginfo-4.10.1_08-3.6.1
      • xen-tools-domU-4.10.1_08-3.6.1
      • xen-tools-domU-debuginfo-4.10.1_08-3.6.1

    References: