Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:0718-1
Rating: important
References: #1002496 #1012651 #1013657 #1013668 #1014298 #1014507 #1015169 #1016340 #1022871 #1023004 #1024183 #1024834 #907805
Affected Products:
  • SUSE OpenStack Cloud 5
  • SUSE Manager Proxy 2.1
  • SUSE Manager 2.1
  • SUSE Linux Enterprise Server 11-SP3-LTSS
  • SUSE Linux Enterprise Point of Sale 11-SP3
  • SUSE Linux Enterprise Debuginfo 11-SP3

  • An update that solves 12 vulnerabilities and has one errata is now available.

    Description:


    This update for xen fixes several issues.

    These security issues were fixed:

    - CVE-2016-10155: The virtual hardware watchdog 'wdt_i6300esb' was
    vulnerable to a memory leakage issue allowing a privileged user to cause
    a DoS and/or potentially crash the Qemu process on the host (bsc#1024183)
    - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine
    cirrus_bitblt_cputovideo failed to check the memory region, allowing for
    an out-of-bounds write that allows for privilege escalation (bsc#1024834)
    - CVE-2017-2615: An error in the bitblt copy operation could have allowed
    a malicious guest administrator to cause an out of bounds memory access,
    possibly leading to information disclosure or privilege escalation
    (bsc#1023004)
    - CVE-2014-8106: A heap-based buffer overflow in the Cirrus VGA emulator
    allowed local guest users to execute arbitrary code via vectors related
    to blit regions (bsc#907805)
    - CVE-2016-9911: The USB EHCI Emulation support was vulnerable to a memory
    leakage issue while processing packet data in 'ehci_init_transfer'. A
    guest user/process could have used this issue to leak host memory,
    resulting in DoS for the host (bsc#1014507)
    - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
    to a divide by zero issue while copying VGA data. A privileged user
    inside guest could have used this flaw to crash the process instance on
    the host, resulting in DoS (bsc#1015169)
    - CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
    to a divide by zero issue while copying VGA data. A privileged user
    inside guest could have used this flaw to crash the process instance on
    the host, resulting in DoS (bsc#1015169)
    - CVE-2016-10013: Xen allowed local 64-bit x86 HVM guest OS users to gain
    privileges by leveraging mishandling of SYSCALL singlestep during
    emulation (bsc#1016340).
    - CVE-2016-9932: CMPXCHG8B emulation on x86 systems allowed local HVM
    guest OS users to obtain sensitive information from host stack memory
    via a "supposedly-ignored" operand size prefix (bsc#1012651).
    - CVE-2016-9101: A memory leak in hw/net/eepro100.c allowed local guest OS
    administrators to cause a denial of service (memory consumption and QEMU
    process crash) by repeatedly unplugging an i8255x (PRO100) NIC device
    (bsc#1013668)
    - CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support
    was vulnerable to an infinite loop issue while receiving packets in
    'mcf_fec_receive'. A privileged user/process inside guest could have
    used this issue to crash the Qemu process on the host leading to DoS
    (bsc#1013657)
    - A malicious guest could have, by frequently rebooting over extended
    periods of time, run the host system out of memory, resulting in a
    Denial of Service (DoS) (bsc#1022871)
    - CVE-2016-10024: Xen allowed local x86 PV guest OS kernel administrators
    to cause a denial of service (host hang or crash) by modifying the
    instruction stream asynchronously while performing certain kernel
    operations (bsc#1014298)

    This non-security issue was fixed:

    - bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd

    Patch Instructions:

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

    • SUSE OpenStack Cloud 5:
      zypper in -t patch sleclo50sp3-xen-13030=1
    • SUSE Manager Proxy 2.1:
      zypper in -t patch slemap21-xen-13030=1
    • SUSE Manager 2.1:
      zypper in -t patch sleman21-xen-13030=1
    • SUSE Linux Enterprise Server 11-SP3-LTSS:
      zypper in -t patch slessp3-xen-13030=1
    • SUSE Linux Enterprise Point of Sale 11-SP3:
      zypper in -t patch sleposp3-xen-13030=1
    • SUSE Linux Enterprise Debuginfo 11-SP3:
      zypper in -t patch dbgsp3-xen-13030=1

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

    Package List:

    • SUSE OpenStack Cloud 5 (x86_64):
      • xen-4.2.5_21-35.1
      • xen-doc-html-4.2.5_21-35.1
      • xen-doc-pdf-4.2.5_21-35.1
      • xen-kmp-default-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-libs-32bit-4.2.5_21-35.1
      • xen-libs-4.2.5_21-35.1
      • xen-tools-4.2.5_21-35.1
      • xen-tools-domU-4.2.5_21-35.1
    • SUSE Manager Proxy 2.1 (x86_64):
      • xen-4.2.5_21-35.1
      • xen-doc-html-4.2.5_21-35.1
      • xen-doc-pdf-4.2.5_21-35.1
      • xen-kmp-default-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-libs-32bit-4.2.5_21-35.1
      • xen-libs-4.2.5_21-35.1
      • xen-tools-4.2.5_21-35.1
      • xen-tools-domU-4.2.5_21-35.1
    • SUSE Manager 2.1 (x86_64):
      • xen-4.2.5_21-35.1
      • xen-doc-html-4.2.5_21-35.1
      • xen-doc-pdf-4.2.5_21-35.1
      • xen-kmp-default-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-libs-32bit-4.2.5_21-35.1
      • xen-libs-4.2.5_21-35.1
      • xen-tools-4.2.5_21-35.1
      • xen-tools-domU-4.2.5_21-35.1
    • SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):
      • xen-kmp-default-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-libs-4.2.5_21-35.1
      • xen-tools-domU-4.2.5_21-35.1
    • SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):
      • xen-4.2.5_21-35.1
      • xen-doc-html-4.2.5_21-35.1
      • xen-doc-pdf-4.2.5_21-35.1
      • xen-libs-32bit-4.2.5_21-35.1
      • xen-tools-4.2.5_21-35.1
    • SUSE Linux Enterprise Server 11-SP3-LTSS (i586):
      • xen-kmp-pae-4.2.5_21_3.0.101_0.47.96-35.1
    • SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
      • xen-kmp-default-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-kmp-pae-4.2.5_21_3.0.101_0.47.96-35.1
      • xen-libs-4.2.5_21-35.1
      • xen-tools-domU-4.2.5_21-35.1
    • SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):
      • xen-debuginfo-4.2.5_21-35.1
      • xen-debugsource-4.2.5_21-35.1

    References: