Security update for xen

Announcement ID: SUSE-SU-2020:1138-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-11739 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2020-11740 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2020-11741 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2020-11742 ( SUSE ): 4.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
  • CVE-2020-11742 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-11743 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-7211 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • CVE-2020-7211 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • SUSE Linux Enterprise Desktop 12 SP4
  • SUSE Linux Enterprise High Performance Computing 12 SP4
  • SUSE Linux Enterprise Server 12 SP4
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • SUSE Linux Enterprise Software Development Kit 12 SP4

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

Description:

This update for xen fixes the following issues:

Security issues fixed:

  • CVE-2020-11742: Bad continuation handling in GNTTABOP_copy (bsc#1169392).
  • CVE-2020-11740, CVE-2020-11741: xen: XSA-313 multiple xenoprof issues (bsc#1168140).
  • CVE-2020-11739: Missing memory barriers in read-write unlock paths (bsc#1168142).
  • CVE-2020-11743: Bad error path in GNTTABOP_map_grant (bsc#1168143).
  • CVE-2020-7211: Fixed potential directory traversal using relative paths via tftp server on Windows host (bsc#1161181).
  • arm: a CPU may speculate past the ERET instruction (bsc#1160932).

Non-security issues fixed:

  • Xenstored Crashed during VM install (bsc#1167152)
  • DomU hang: soft lockup CPU #0 stuck under high load (bsc#1165206, bsc#1134506)
  • Update API compatibility versions, fixes issues for libvirt. (bsc#1167007, bsc#1157490)
  • aacraid blocks xen commands (bsc#1155200)

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 Software Development Kit 12 SP4
    zypper in -t patch SUSE-SLE-SDK-12-SP4-2020-1138=1
  • SUSE Linux Enterprise High Performance Computing 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1138=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1138=1
  • SUSE Linux Enterprise Server 12 SP4
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1138=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 12 SP4 (aarch64 x86_64)
    • xen-devel-4.11.3_04-2.23.1
    • xen-debugsource-4.11.3_04-2.23.1
  • SUSE Linux Enterprise High Performance Computing 12 SP4 (x86_64)
    • xen-tools-domU-debuginfo-4.11.3_04-2.23.1
    • xen-libs-32bit-4.11.3_04-2.23.1
    • xen-libs-debuginfo-32bit-4.11.3_04-2.23.1
    • xen-libs-4.11.3_04-2.23.1
    • xen-doc-html-4.11.3_04-2.23.1
    • xen-libs-debuginfo-4.11.3_04-2.23.1
    • xen-tools-debuginfo-4.11.3_04-2.23.1
    • xen-debugsource-4.11.3_04-2.23.1
    • xen-4.11.3_04-2.23.1
    • xen-tools-4.11.3_04-2.23.1
    • xen-tools-domU-4.11.3_04-2.23.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
    • xen-tools-domU-debuginfo-4.11.3_04-2.23.1
    • xen-libs-32bit-4.11.3_04-2.23.1
    • xen-libs-debuginfo-32bit-4.11.3_04-2.23.1
    • xen-libs-4.11.3_04-2.23.1
    • xen-doc-html-4.11.3_04-2.23.1
    • xen-libs-debuginfo-4.11.3_04-2.23.1
    • xen-tools-debuginfo-4.11.3_04-2.23.1
    • xen-debugsource-4.11.3_04-2.23.1
    • xen-4.11.3_04-2.23.1
    • xen-tools-4.11.3_04-2.23.1
    • xen-tools-domU-4.11.3_04-2.23.1
  • SUSE Linux Enterprise Server 12 SP4 (x86_64)
    • xen-tools-domU-debuginfo-4.11.3_04-2.23.1
    • xen-libs-32bit-4.11.3_04-2.23.1
    • xen-libs-debuginfo-32bit-4.11.3_04-2.23.1
    • xen-libs-4.11.3_04-2.23.1
    • xen-doc-html-4.11.3_04-2.23.1
    • xen-libs-debuginfo-4.11.3_04-2.23.1
    • xen-tools-debuginfo-4.11.3_04-2.23.1
    • xen-debugsource-4.11.3_04-2.23.1
    • xen-4.11.3_04-2.23.1
    • xen-tools-4.11.3_04-2.23.1
    • xen-tools-domU-4.11.3_04-2.23.1

References: