Security update for xen

Announcement ID: SUSE-SU-2017:1143-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2016-9603 ( NVD ): 9.9 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2017-7718 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7718 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 12 SP2
  • SUSE Linux Enterprise High Performance Computing 12 SP2
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • SUSE Linux Enterprise Software Development Kit 12 12-SP2

An update that solves two vulnerabilities and has six security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

  • A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843)
  • A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844).
  • CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034994).
  • CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028655)

These non-security issues were fixed:

  • bsc#1029827: Additional xenstore patch
  • bsc#1036146: Xen VM dumped core to wrong path
  • bsc#1022703: Prevent Xen HVM guest with OVMF to hang with unattached CDRom

Patch Instructions:

To install this SUSE 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 Desktop 12 SP2
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-663=1
  • SUSE Linux Enterprise Software Development Kit 12 12-SP2
    zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-663=1
  • SUSE Linux Enterprise High Performance Computing 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-663=1
  • SUSE Linux Enterprise Server 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-663=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-663=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP2 (x86_64)
    • xen-4.7.2_04-39.1
    • xen-libs-debuginfo-4.7.2_04-39.1
    • xen-debugsource-4.7.2_04-39.1
    • xen-libs-debuginfo-32bit-4.7.2_04-39.1
    • xen-libs-32bit-4.7.2_04-39.1
    • xen-libs-4.7.2_04-39.1
  • SUSE Linux Enterprise Software Development Kit 12 12-SP2 (aarch64 x86_64)
    • xen-devel-4.7.2_04-39.1
    • xen-debugsource-4.7.2_04-39.1
  • SUSE Linux Enterprise High Performance Computing 12 SP2 (x86_64)
    • xen-tools-debuginfo-4.7.2_04-39.1
    • xen-4.7.2_04-39.1
    • xen-doc-html-4.7.2_04-39.1
    • xen-libs-debuginfo-4.7.2_04-39.1
    • xen-tools-domU-debuginfo-4.7.2_04-39.1
    • xen-debugsource-4.7.2_04-39.1
    • xen-libs-debuginfo-32bit-4.7.2_04-39.1
    • xen-libs-32bit-4.7.2_04-39.1
    • xen-tools-domU-4.7.2_04-39.1
    • xen-tools-4.7.2_04-39.1
    • xen-libs-4.7.2_04-39.1
  • SUSE Linux Enterprise Server 12 SP2 (x86_64)
    • xen-tools-debuginfo-4.7.2_04-39.1
    • xen-4.7.2_04-39.1
    • xen-doc-html-4.7.2_04-39.1
    • xen-libs-debuginfo-4.7.2_04-39.1
    • xen-tools-domU-debuginfo-4.7.2_04-39.1
    • xen-debugsource-4.7.2_04-39.1
    • xen-libs-debuginfo-32bit-4.7.2_04-39.1
    • xen-libs-32bit-4.7.2_04-39.1
    • xen-tools-domU-4.7.2_04-39.1
    • xen-tools-4.7.2_04-39.1
    • xen-libs-4.7.2_04-39.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
    • xen-tools-debuginfo-4.7.2_04-39.1
    • xen-4.7.2_04-39.1
    • xen-doc-html-4.7.2_04-39.1
    • xen-libs-debuginfo-4.7.2_04-39.1
    • xen-tools-domU-debuginfo-4.7.2_04-39.1
    • xen-debugsource-4.7.2_04-39.1
    • xen-libs-debuginfo-32bit-4.7.2_04-39.1
    • xen-libs-32bit-4.7.2_04-39.1
    • xen-tools-domU-4.7.2_04-39.1
    • xen-tools-4.7.2_04-39.1
    • xen-libs-4.7.2_04-39.1

References: