Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2018:1981-1
Rating: important
References: #1027519 #1079730 #1087289 #1095242 #1097521 #1097522 #1097523 #1098403
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15
  • SUSE Linux Enterprise Module for Basesystem 15
    		•

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

    Description:

    This update for xen fixes the following issues:

    Security issues fixed:

    - CVE-2018-3665: Fix Lazy FP Save/Restore issue (XSA-267) (bsc#1095242).
    - CVE-2018-12891: Fix possible Denial of Service (DoS) via certain PV MMU
    operations that affect the entire host (XSA-264) (bsc#1097521).
    - CVE-2018-12892: Fix libxl to honour the readonly flag on HVM emulated
    SCSI disks (XSA-266) (bsc#1097523).
    - CVE-2018-12893: Fix crash/Denial of Service (DoS) via safety check
    (XSA-265) (bsc#1097522).


    Bug fixes:

    - bsc#1027519: Add upstream patches from January.
    - bsc#1098403: Fix regression introduced by changes for bsc#1079730. A PV
    domU without qcow2 and/or vfb has no qemu attached. Ignore QMP errors
    for PV domUs to handle PV domUs with and without an attached qemu-xen.
    - bsc#1087289: Fix xen scheduler crash.

    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-15-2018-1342=1
    • SUSE Linux Enterprise Module for Basesystem 15:
      zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-1342=1

    Package List:

    • SUSE Linux Enterprise Module for Server Applications 15 (x86_64):
      • xen-4.10.1_06-3.3.1
      • xen-debugsource-4.10.1_06-3.3.1
      • xen-devel-4.10.1_06-3.3.1
      • xen-tools-4.10.1_06-3.3.1
      • xen-tools-debuginfo-4.10.1_06-3.3.1
    • SUSE Linux Enterprise Module for Basesystem 15 (x86_64):
      • xen-debugsource-4.10.1_06-3.3.1
      • xen-libs-4.10.1_06-3.3.1
      • xen-libs-debuginfo-4.10.1_06-3.3.1
      • xen-tools-domU-4.10.1_06-3.3.1
      • xen-tools-domU-debuginfo-4.10.1_06-3.3.1

    References: