Security update for xen

Announcement ID: SUSE-SU-2021:14702-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-20257 ( SUSE ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
  • CVE-2021-20257 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2021-3419 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4

An update that solves two vulnerabilities and has one security fix can now be installed.

Description:

This update for xen fixes the following issues:

  • CVE-2021-3419: Fixed a stack overflow induced by infinite recursion issue (bsc#1182975).
  • CVE-2021-20257: Fixed an infinite loop in the e1000 NIC emulator (bsc#1182846)
  • xenstored crashing with segfault (bsc#1182155).

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 Server 11 SP4 LTSS 11-SP4
    zypper in -t patch slessp4-xen-14702=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-xen-14702=1

Package List:

  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (x86_64 i586)
    • xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1
    • xen-tools-domU-4.4.4_48-61.64.1
    • xen-libs-4.4.4_48-61.64.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (i586)
    • xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (x86_64)
    • xen-libs-32bit-4.4.4_48-61.64.1
    • xen-doc-html-4.4.4_48-61.64.1
    • xen-tools-4.4.4_48-61.64.1
    • xen-4.4.4_48-61.64.1
  • SUSE Linux Enterprise Server 11 SP4 (x86_64 i586)
    • xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1
    • xen-tools-domU-4.4.4_48-61.64.1
    • xen-libs-4.4.4_48-61.64.1
  • SUSE Linux Enterprise Server 11 SP4 (i586)
    • xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1
  • SUSE Linux Enterprise Server 11 SP4 (x86_64)
    • xen-libs-32bit-4.4.4_48-61.64.1
    • xen-doc-html-4.4.4_48-61.64.1
    • xen-tools-4.4.4_48-61.64.1
    • xen-4.4.4_48-61.64.1

References: