Security update for xen

Announcement ID:	SUSE-SU-2021:3842-1
Rating:	moderate
References:	bsc#1189373 bsc#1189378 bsc#1189632 bsc#1192554 bsc#1192557 bsc#1192559
Cross-References:	CVE-2021-28701 CVE-2021-28704 CVE-2021-28705 CVE-2021-28706 CVE-2021-28707 CVE-2021-28708 CVE-2021-28709
CVSS scores:	CVE-2021-28701 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28701 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2021-28704 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28704 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2021-28705 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28705 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-28706 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28706 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2021-28707 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28707 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2021-28708 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28708 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2021-28709 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28709 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise High Performance Computing 15 LTSS 15 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server 15 LTSS 15 SUSE Linux Enterprise Server ESPOS 15 SUSE Linux Enterprise Server for SAP Applications 15

An update that solves seven vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632).
• CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).
• CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559).

• CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).

• Integrate bugfixes (bsc#1189373, bsc#1189378).

Special Instructions and Notes:

• Please reboot the system after installing this update.

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 ESPOS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2021-3842=1
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-HPC-15-2021-3842=1
• SUSE Linux Enterprise Server 15 LTSS 15
  zypper in -t patch SUSE-SLE-Product-SLES-15-2021-3842=1
• SUSE Linux Enterprise Server for SAP Applications 15
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-3842=1

Package List:

• SUSE Linux Enterprise Server ESPOS 15 (x86_64)
  • xen-tools-domU-4.10.4_30-3.68.1
  • xen-4.10.4_30-3.68.1
  • xen-tools-debuginfo-4.10.4_30-3.68.1
  • xen-debugsource-4.10.4_30-3.68.1
  • xen-libs-debuginfo-4.10.4_30-3.68.1
  • xen-tools-4.10.4_30-3.68.1
  • xen-devel-4.10.4_30-3.68.1
  • xen-tools-domU-debuginfo-4.10.4_30-3.68.1
  • xen-libs-4.10.4_30-3.68.1
• SUSE Linux Enterprise High Performance Computing 15 LTSS 15 (x86_64)
  • xen-tools-domU-4.10.4_30-3.68.1
  • xen-4.10.4_30-3.68.1
  • xen-tools-debuginfo-4.10.4_30-3.68.1
  • xen-debugsource-4.10.4_30-3.68.1
  • xen-libs-debuginfo-4.10.4_30-3.68.1
  • xen-tools-4.10.4_30-3.68.1
  • xen-devel-4.10.4_30-3.68.1
  • xen-tools-domU-debuginfo-4.10.4_30-3.68.1
  • xen-libs-4.10.4_30-3.68.1
• SUSE Linux Enterprise Server 15 LTSS 15 (x86_64)
  • xen-tools-domU-4.10.4_30-3.68.1
  • xen-4.10.4_30-3.68.1
  • xen-tools-debuginfo-4.10.4_30-3.68.1
  • xen-debugsource-4.10.4_30-3.68.1
  • xen-libs-debuginfo-4.10.4_30-3.68.1
  • xen-tools-4.10.4_30-3.68.1
  • xen-devel-4.10.4_30-3.68.1
  • xen-tools-domU-debuginfo-4.10.4_30-3.68.1
  • xen-libs-4.10.4_30-3.68.1
• SUSE Linux Enterprise Server for SAP Applications 15 (x86_64)
  • xen-tools-domU-4.10.4_30-3.68.1
  • xen-4.10.4_30-3.68.1
  • xen-tools-debuginfo-4.10.4_30-3.68.1
  • xen-debugsource-4.10.4_30-3.68.1
  • xen-libs-debuginfo-4.10.4_30-3.68.1
  • xen-tools-4.10.4_30-3.68.1
  • xen-devel-4.10.4_30-3.68.1
  • xen-tools-domU-debuginfo-4.10.4_30-3.68.1
  • xen-libs-4.10.4_30-3.68.1

References:

• https://www.suse.com/security/cve/CVE-2021-28701.html
• https://www.suse.com/security/cve/CVE-2021-28704.html
• https://www.suse.com/security/cve/CVE-2021-28705.html
• https://www.suse.com/security/cve/CVE-2021-28706.html
• https://www.suse.com/security/cve/CVE-2021-28707.html
• https://www.suse.com/security/cve/CVE-2021-28708.html
• https://www.suse.com/security/cve/CVE-2021-28709.html
• https://bugzilla.suse.com/show_bug.cgi?id=1189373
• https://bugzilla.suse.com/show_bug.cgi?id=1189378
• https://bugzilla.suse.com/show_bug.cgi?id=1189632
• https://bugzilla.suse.com/show_bug.cgi?id=1192554
• https://bugzilla.suse.com/show_bug.cgi?id=1192557
• https://bugzilla.suse.com/show_bug.cgi?id=1192559