Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2020:1138-1
Rating: important
References: #1027519 #1155200 #1160932 #1161181 #1167152 #1168140 #1168142 #1168143 #1169392
Cross-References:CVE-2020-11739 CVE-2020-11740 CVE-2020-11741 CVE-2020-11742 CVE-2020-11743 CVE-2020-7211
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP4
  • SUSE Linux Enterprise Server 12-SP4

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

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 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 Linux Enterprise Software Development Kit 12-SP4:
    zypper in -t patch SUSE-SLE-SDK-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-debugsource-4.11.3_04-2.23.1
    • xen-devel-4.11.3_04-2.23.1
  • SUSE Linux Enterprise Server 12-SP4 (x86_64):
    • xen-4.11.3_04-2.23.1
    • xen-debugsource-4.11.3_04-2.23.1
    • xen-doc-html-4.11.3_04-2.23.1
    • xen-libs-32bit-4.11.3_04-2.23.1
    • xen-libs-4.11.3_04-2.23.1
    • xen-libs-debuginfo-32bit-4.11.3_04-2.23.1
    • xen-libs-debuginfo-4.11.3_04-2.23.1
    • xen-tools-4.11.3_04-2.23.1
    • xen-tools-debuginfo-4.11.3_04-2.23.1
    • xen-tools-domU-4.11.3_04-2.23.1
    • xen-tools-domU-debuginfo-4.11.3_04-2.23.1

References: