Security update for xen

Announcement ID: SUSE-SU-2018:1216-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2017-5754 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2017-5754 ( SUSE ): 7.1 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
  • CVE-2017-5754 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2018-10471 ( NVD ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2018-10472 ( NVD ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2018-8897 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-8897 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Enterprise Storage 4
  • SUSE Linux Enterprise High Performance Computing 12 SP2
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise High Performance Computing 12 SP4
  • SUSE Linux Enterprise High Performance Computing 12 SP5
  • SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • SUSE OpenStack Cloud 7

An update that solves four vulnerabilities and has three security fixes can now be installed.

Description:

This update for xen fixes several issues.

These security issues were fixed:

  • CVE-2018-8897: Prevent mishandling of debug exceptions on x86 (XSA-260, bsc#1090820)
  • Handle HPET timers in IO-APIC mode correctly to prevent malicious or buggy HVM guests from causing a hypervisor crash or potentially privilege escalation/information leaks (XSA-261, bsc#1090822)
  • Prevent unbounded loop, induced by qemu allowing an attacker to permanently keep a physical CPU core busy (XSA-262, bsc#1090823)
  • CVE-2018-10472: x86 HVM guest OS users (in certain configurations) were able to read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot (bsc#1089152).
  • CVE-2018-10471: x86 PV guest OS users were able to cause a denial of service (out-of-bounds zero write and hypervisor crash) via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754 (bsc#1089635).

These non-security issues were fixed:

  • bsc#1086039: Ensure that Dom0 does represent DomU cpu flags correctly
  • bsc#1027519: Fixed shadow mode guests

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 OpenStack Cloud 7
    zypper in -t patch SUSE-OpenStack-Cloud-7-2018-841=1
  • SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
    zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2018-841=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2
    zypper in -t patch SUSE-SLE-SAP-12-SP2-2018-841=1
  • SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-841=1
  • SUSE Enterprise Storage 4
    zypper in -t patch SUSE-Storage-4-2018-841=1

Package List:

  • SUSE OpenStack Cloud 7 (x86_64)
    • xen-doc-html-4.7.5_02-43.30.1
    • xen-tools-debuginfo-4.7.5_02-43.30.1
    • xen-libs-4.7.5_02-43.30.1
    • xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
    • xen-libs-debuginfo-4.7.5_02-43.30.1
    • xen-tools-domU-4.7.5_02-43.30.1
    • xen-tools-4.7.5_02-43.30.1
    • xen-libs-32bit-4.7.5_02-43.30.1
    • xen-tools-domU-debuginfo-4.7.5_02-43.30.1
    • xen-debugsource-4.7.5_02-43.30.1
    • xen-4.7.5_02-43.30.1
  • SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
    • xen-doc-html-4.7.5_02-43.30.1
    • xen-tools-debuginfo-4.7.5_02-43.30.1
    • xen-libs-4.7.5_02-43.30.1
    • xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
    • xen-libs-debuginfo-4.7.5_02-43.30.1
    • xen-tools-domU-4.7.5_02-43.30.1
    • xen-tools-4.7.5_02-43.30.1
    • xen-libs-32bit-4.7.5_02-43.30.1
    • xen-tools-domU-debuginfo-4.7.5_02-43.30.1
    • xen-debugsource-4.7.5_02-43.30.1
    • xen-4.7.5_02-43.30.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP2 (x86_64)
    • xen-doc-html-4.7.5_02-43.30.1
    • xen-tools-debuginfo-4.7.5_02-43.30.1
    • xen-libs-4.7.5_02-43.30.1
    • xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
    • xen-libs-debuginfo-4.7.5_02-43.30.1
    • xen-tools-domU-4.7.5_02-43.30.1
    • xen-tools-4.7.5_02-43.30.1
    • xen-libs-32bit-4.7.5_02-43.30.1
    • xen-tools-domU-debuginfo-4.7.5_02-43.30.1
    • xen-debugsource-4.7.5_02-43.30.1
    • xen-4.7.5_02-43.30.1
  • SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (x86_64)
    • xen-doc-html-4.7.5_02-43.30.1
    • xen-tools-debuginfo-4.7.5_02-43.30.1
    • xen-libs-4.7.5_02-43.30.1
    • xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
    • xen-libs-debuginfo-4.7.5_02-43.30.1
    • xen-tools-domU-4.7.5_02-43.30.1
    • xen-tools-4.7.5_02-43.30.1
    • xen-libs-32bit-4.7.5_02-43.30.1
    • xen-tools-domU-debuginfo-4.7.5_02-43.30.1
    • xen-debugsource-4.7.5_02-43.30.1
    • xen-4.7.5_02-43.30.1
  • SUSE Enterprise Storage 4 (x86_64)
    • xen-doc-html-4.7.5_02-43.30.1
    • xen-tools-debuginfo-4.7.5_02-43.30.1
    • xen-libs-4.7.5_02-43.30.1
    • xen-libs-debuginfo-32bit-4.7.5_02-43.30.1
    • xen-libs-debuginfo-4.7.5_02-43.30.1
    • xen-tools-domU-4.7.5_02-43.30.1
    • xen-tools-4.7.5_02-43.30.1
    • xen-libs-32bit-4.7.5_02-43.30.1
    • xen-tools-domU-debuginfo-4.7.5_02-43.30.1
    • xen-debugsource-4.7.5_02-43.30.1
    • xen-4.7.5_02-43.30.1

References: