Security update for xen

Announcement ID: SUSE-SU-2020:1124-1
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
Affected Products:
  • Basesystem Module 15-SP1
  • Server Applications Module 15-SP1
  • SUSE Linux Enterprise Desktop 15 SP1
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise Real Time 15 SP1
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • SUSE Manager Proxy 4.0
  • SUSE Manager Retail Branch Server 4.0
  • SUSE Manager Server 4.0

An update that solves five vulnerabilities and has seven 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).
  • 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:

  • Basesystem Module 15-SP1
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1124=1
  • Server Applications Module 15-SP1
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1124=1

Package List:

  • Basesystem Module 15-SP1 (x86_64)
    • xen-debugsource-4.12.2_04-3.15.1
    • xen-libs-debuginfo-4.12.2_04-3.15.1
    • xen-tools-domU-4.12.2_04-3.15.1
    • xen-libs-4.12.2_04-3.15.1
    • xen-tools-domU-debuginfo-4.12.2_04-3.15.1
  • Server Applications Module 15-SP1 (x86_64)
    • xen-debugsource-4.12.2_04-3.15.1
    • xen-4.12.2_04-3.15.1
    • xen-devel-4.12.2_04-3.15.1
    • xen-tools-debuginfo-4.12.2_04-3.15.1
    • xen-tools-4.12.2_04-3.15.1

References: