Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:1795-1
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 Server for SAP 12
  • SUSE Linux Enterprise Server 12-LTSS
    		•

    An update that solves 16 vulnerabilities and has two fixes is now available.

    Description:

    This update for xen fixes several issues.

    These security issues were fixed:

    - 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-2017-10911: blkif responses leaked backend stack data, which allowed
    unprivileged guest to obtain sensitive information from the host or
    other guests (XSA-216, bsc#1042863)
    - CVE-2017-10912: Page transfer might have allowed PV guest to elevate
    privilege (XSA-217, bsc#1042882)
    - CVE-2017-10913, CVE-2017-10914: Races in the grant table unmap code
    allowed for informations leaks and potentially privilege escalation
    (XSA-218, bsc#1042893)
    - CVE-2017-10915: 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)
    - CVE-2017-10917: Missing NULL pointer check in event channel poll allows
    guests to DoS the host (XSA-221, bsc#1042924)
    - CVE-2017-10918: Stale P2M mappings due to insufficient error checking
    allowed malicious guest to leak information or elevate privileges
    (XSA-222, bsc#1042931)
    - CVE-2017-10920, CVE-2017-10921, CVE-2017-10922: 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-2017-8112: 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)
    - 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).

    These non-security issues were fixed:

    - bsc#1031460: Fixed DomU Live Migration
    - bsc#1014136: Fixed kdump SLES12-SP2
    - bsc#1026236: Equalized paravirtualized vs. fully virtualized migration
    speed
    - bsc#1032148: Ensure that time doesn't goes backwards during live
    migration of HVM domU
    - bsc#1027519: Included various upstream patches

    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 Server for SAP 12:
      zypper in -t patch SUSE-SLE-SAP-12-2017-1118=1
    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2017-1118=1

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

    Package List:

    • SUSE Linux Enterprise Server for SAP 12 (x86_64):
      • xen-4.4.4_21-22.42.1
      • xen-debugsource-4.4.4_21-22.42.1
      • xen-doc-html-4.4.4_21-22.42.1
      • xen-kmp-default-4.4.4_21_k3.12.61_52.77-22.42.1
      • xen-kmp-default-debuginfo-4.4.4_21_k3.12.61_52.77-22.42.1
      • xen-libs-32bit-4.4.4_21-22.42.1
      • xen-libs-4.4.4_21-22.42.1
      • xen-libs-debuginfo-32bit-4.4.4_21-22.42.1
      • xen-libs-debuginfo-4.4.4_21-22.42.1
      • xen-tools-4.4.4_21-22.42.1
      • xen-tools-debuginfo-4.4.4_21-22.42.1
      • xen-tools-domU-4.4.4_21-22.42.1
      • xen-tools-domU-debuginfo-4.4.4_21-22.42.1
    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • xen-4.4.4_21-22.42.1
      • xen-debugsource-4.4.4_21-22.42.1
      • xen-doc-html-4.4.4_21-22.42.1
      • xen-kmp-default-4.4.4_21_k3.12.61_52.77-22.42.1
      • xen-kmp-default-debuginfo-4.4.4_21_k3.12.61_52.77-22.42.1
      • xen-libs-32bit-4.4.4_21-22.42.1
      • xen-libs-4.4.4_21-22.42.1
      • xen-libs-debuginfo-32bit-4.4.4_21-22.42.1
      • xen-libs-debuginfo-4.4.4_21-22.42.1
      • xen-tools-4.4.4_21-22.42.1
      • xen-tools-debuginfo-4.4.4_21-22.42.1
      • xen-tools-domU-4.4.4_21-22.42.1
      • xen-tools-domU-debuginfo-4.4.4_21-22.42.1

    References: