Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2019:0020-1
Rating: important
References: #1027519 #1105528 #1108940 #1114423 #1115040 #1115045 #1115047 #1116380 #1117756
Cross-References: CVE-2018-18849 CVE-2018-19665 CVE-2018-19961 CVE-2018-19962 CVE-2018-19965 CVE-2018-19966
Affected Products:
  • SUSE OpenStack Cloud 7
  • SUSE Linux Enterprise Server for SAP 12-SP2
  • SUSE Linux Enterprise Server 12-SP2-LTSS
  • SUSE Linux Enterprise Server 12-SP2-BCL
  • SUSE Enterprise Storage 4

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

Description:

This update for xen fixes the following issues:
Security vulnerabilities fixed:

  • CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040)
  • CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045)
  • CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047)
  • CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756).
  • CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1114423)

Other bugs fixed:
  • Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940)
  • Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528)
  • Fixed an issue with live migrations, which used to fail when spectre is enabled on xen boot cmdline (bsc#1116380)
  • Upstream bug fixes (bsc#1027519)

Patch Instructions:

To install this SUSE Security 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-7-2019-20=1
  • SUSE Linux Enterprise Server for SAP 12-SP2:
    zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-20=1
  • SUSE Linux Enterprise Server 12-SP2-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-20=1
  • SUSE Linux Enterprise Server 12-SP2-BCL:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2019-20=1
  • SUSE Enterprise Storage 4:
    zypper in -t patch SUSE-Storage-4-2019-20=1

Package List:

  • SUSE OpenStack Cloud 7 (x86_64):
    • xen-4.7.6_05-43.45.1
    • xen-debugsource-4.7.6_05-43.45.1
    • xen-doc-html-4.7.6_05-43.45.1
    • xen-libs-32bit-4.7.6_05-43.45.1
    • xen-libs-4.7.6_05-43.45.1
    • xen-libs-debuginfo-32bit-4.7.6_05-43.45.1
    • xen-libs-debuginfo-4.7.6_05-43.45.1
    • xen-tools-4.7.6_05-43.45.1
    • xen-tools-debuginfo-4.7.6_05-43.45.1
    • xen-tools-domU-4.7.6_05-43.45.1
    • xen-tools-domU-debuginfo-4.7.6_05-43.45.1
  • SUSE Linux Enterprise Server for SAP 12-SP2 (x86_64):
    • xen-4.7.6_05-43.45.1
    • xen-debugsource-4.7.6_05-43.45.1
    • xen-doc-html-4.7.6_05-43.45.1
    • xen-libs-32bit-4.7.6_05-43.45.1
    • xen-libs-4.7.6_05-43.45.1
    • xen-libs-debuginfo-32bit-4.7.6_05-43.45.1
    • xen-libs-debuginfo-4.7.6_05-43.45.1
    • xen-tools-4.7.6_05-43.45.1
    • xen-tools-debuginfo-4.7.6_05-43.45.1
    • xen-tools-domU-4.7.6_05-43.45.1
    • xen-tools-domU-debuginfo-4.7.6_05-43.45.1
  • SUSE Linux Enterprise Server 12-SP2-LTSS (x86_64):
    • xen-4.7.6_05-43.45.1
    • xen-debugsource-4.7.6_05-43.45.1
    • xen-doc-html-4.7.6_05-43.45.1
    • xen-libs-32bit-4.7.6_05-43.45.1
    • xen-libs-4.7.6_05-43.45.1
    • xen-libs-debuginfo-32bit-4.7.6_05-43.45.1
    • xen-libs-debuginfo-4.7.6_05-43.45.1
    • xen-tools-4.7.6_05-43.45.1
    • xen-tools-debuginfo-4.7.6_05-43.45.1
    • xen-tools-domU-4.7.6_05-43.45.1
    • xen-tools-domU-debuginfo-4.7.6_05-43.45.1
  • SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
    • xen-4.7.6_05-43.45.1
    • xen-debugsource-4.7.6_05-43.45.1
    • xen-doc-html-4.7.6_05-43.45.1
    • xen-libs-32bit-4.7.6_05-43.45.1
    • xen-libs-4.7.6_05-43.45.1
    • xen-libs-debuginfo-32bit-4.7.6_05-43.45.1
    • xen-libs-debuginfo-4.7.6_05-43.45.1
    • xen-tools-4.7.6_05-43.45.1
    • xen-tools-debuginfo-4.7.6_05-43.45.1
    • xen-tools-domU-4.7.6_05-43.45.1
    • xen-tools-domU-debuginfo-4.7.6_05-43.45.1
  • SUSE Enterprise Storage 4 (x86_64):
    • xen-4.7.6_05-43.45.1
    • xen-debugsource-4.7.6_05-43.45.1
    • xen-doc-html-4.7.6_05-43.45.1
    • xen-libs-32bit-4.7.6_05-43.45.1
    • xen-libs-4.7.6_05-43.45.1
    • xen-libs-debuginfo-32bit-4.7.6_05-43.45.1
    • xen-libs-debuginfo-4.7.6_05-43.45.1
    • xen-tools-4.7.6_05-43.45.1
    • xen-tools-debuginfo-4.7.6_05-43.45.1
    • xen-tools-domU-4.7.6_05-43.45.1
    • xen-tools-domU-debuginfo-4.7.6_05-43.45.1

References: