SUSE Security Update: Security update for xen
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Announcement ID:    SUSE-SU-2022:0939-1
Rating:             important
References:         #1196915 
Cross-References:   CVE-2021-26401 CVE-2022-0001 CVE-2022-0002
                   
CVSS scores:
                    CVE-2021-26401 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-26401 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0001 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0001 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0002 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2022-0002 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected Products:
                    SUSE Linux Enterprise Server 12-SP5
                    SUSE Linux Enterprise Server for SAP Applications 12-SP5
                    SUSE Linux Enterprise Software Development Kit 12-SP5
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   Transient execution side-channel attacks attacking the Branch History
   Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch
   History Injection" are now mitigated.

   - CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: BHB speculation issues
     (bsc#1196915).


Special Instructions and Notes:

   Please reboot the system after installing this update.

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-SP5:

      zypper in -t patch SUSE-SLE-SDK-12-SP5-2022-939=1

   - SUSE Linux Enterprise Server 12-SP5:

      zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-939=1



Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 x86_64):

      xen-debugsource-4.12.4_20-3.61.1
      xen-devel-4.12.4_20-3.61.1

   - SUSE Linux Enterprise Server 12-SP5 (x86_64):

      xen-4.12.4_20-3.61.1
      xen-debugsource-4.12.4_20-3.61.1
      xen-doc-html-4.12.4_20-3.61.1
      xen-libs-32bit-4.12.4_20-3.61.1
      xen-libs-4.12.4_20-3.61.1
      xen-libs-debuginfo-32bit-4.12.4_20-3.61.1
      xen-libs-debuginfo-4.12.4_20-3.61.1
      xen-tools-4.12.4_20-3.61.1
      xen-tools-debuginfo-4.12.4_20-3.61.1
      xen-tools-domU-4.12.4_20-3.61.1
      xen-tools-domU-debuginfo-4.12.4_20-3.61.1


References:

   https://www.suse.com/security/cve/CVE-2021-26401.html
   https://www.suse.com/security/cve/CVE-2022-0001.html
   https://www.suse.com/security/cve/CVE-2022-0002.html
   https://bugzilla.suse.com/1196915