Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:1770-1
Rating: important
References: #1014136 #1026236 #1027519 #1031460 #1032148 #1034845 #1036470 #1037243 #1042160 #1042863 #1042882 #1042893 #1042915 #1042924 #1042931 #1042938 #1043074 #1043297
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 11-SP4
  • SUSE Linux Enterprise Server 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP4
    		•

    An update that solves 6 vulnerabilities and has 12 fixes is now available.

    Description:

    This update for xen fixes several issues.

    These security issues were fixed:

    - blkif responses leaked backend stack data, which allowed unprivileged
    guest to obtain sensitive information from the host or other guests
    (XSA-216, bsc#1042863)
    - Page transfer might have allowed PV guest to elevate privilege (XSA-217,
    bsc#1042882)
    - Races in the grant table unmap code allowed for informations leaks and
    potentially privilege escalation (XSA-218, bsc#1042893)
    - Insufficient reference counts during shadow emulation allowed a
    malicious pair of guest to elevate their privileges to the privileges
    that XEN runs under (XSA-219, bsc#1042915)
    - Stale P2M mappings due to insufficient error checking allowed malicious
    guest to leak information or elevate privileges (XSA-222, bsc#1042931)
    - Grant table operations mishandled reference counts allowing malicious
    guests to escape (XSA-224, bsc#1042938)
    - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
    to cause a denial of service (infinite loop) by leveraging an incorrect
    return value (bsc#1042160)
    - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
    to cause a denial of service (memory consumption) by repeatedly starting
    and stopping audio capture (bsc#1037243)
    - CVE-2017-8905: Xen a failsafe callback, which might have allowed PV
    guest OS users to execute arbitrary code on the host OS (XSA-215,
    bsc#1034845).
    - CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation
    support was vulnerable to a null pointer dereference issue which allowed
    a privileged user inside guest to crash the Qemu process on the host
    resulting in DoS (bsc#1043297)
    - CVE-2017-9374: Missing free of 's->ipacket', causes a host memory leak,
    allowing for DoS (bsc#1043074)
    - CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged
    users to cause a denial of service (infinite loop and CPU consumption)
    via the message ring page count (bsc#1036470)
    - Missing NULL pointer check in event channel poll allows guests to DoS
    the host (XSA-221, bsc#1042924)

    These non-security issues were fixed:

    - bsc#1032148: Ensure that time doesn't goes backwards during live
    migration of HVM domU
    - bsc#1031460: Fixed DomU Live Migration
    - bsc#1014136: Fixed kdump SLES12-SP2
    - bsc#1026236: Equalized paravirtualized vs. fully virtualized migration
    speed

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Software Development Kit 11-SP4:
      zypper in -t patch sdksp4-xen-13193=1
    • SUSE Linux Enterprise Server 11-SP4:
      zypper in -t patch slessp4-xen-13193=1
    • SUSE Linux Enterprise Debuginfo 11-SP4:
      zypper in -t patch dbgsp4-xen-13193=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):
      • xen-devel-4.4.4_20-60.3
    • SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):
      • xen-kmp-default-4.4.4_20_3.0.101_104-60.3
      • xen-libs-4.4.4_20-60.3
      • xen-tools-domU-4.4.4_20-60.3
    • SUSE Linux Enterprise Server 11-SP4 (x86_64):
      • xen-4.4.4_20-60.3
      • xen-doc-html-4.4.4_20-60.3
      • xen-libs-32bit-4.4.4_20-60.3
      • xen-tools-4.4.4_20-60.3
    • SUSE Linux Enterprise Server 11-SP4 (i586):
      • xen-kmp-pae-4.4.4_20_3.0.101_104-60.3
    • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):
      • xen-debuginfo-4.4.4_20-60.3
      • xen-debugsource-4.4.4_20-60.3

    References: