Security update for xen

Announcement ID:	SUSE-SU-2021:3968-1
Rating:	moderate
References:	bsc#1027519 bsc#1191363 bsc#1192554 bsc#1192557 bsc#1192559
Cross-References:	CVE-2021-28702 CVE-2021-28704 CVE-2021-28705 CVE-2021-28706 CVE-2021-28707 CVE-2021-28708 CVE-2021-28709
CVSS scores:	CVE-2021-28702 ( SUSE ): 6.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:H CVE-2021-28702 ( NVD ): 7.6 CVSS:3.1/AV:P/AC:L/PR:N/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:	Basesystem Module 15-SP3 openSUSE Leap 15.3 Server Applications Module 15-SP3 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2

An update that solves seven vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly (XSA-386) (bsc#1191363).
• 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).

• Update to Xen 4.14.3 bug fix release (bsc#1027519).

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:

• openSUSE Leap 15.3
  zypper in -t patch SUSE-2021-3968=1
• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-3968=1
• Server Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2021-3968=1
• SUSE Linux Enterprise Micro 5.1
  zypper in -t patch SUSE-SUSE-MicroOS-5.1-2021-3968=1

Package List:

• openSUSE Leap 15.3 (aarch64 x86_64 i586)
  • xen-debugsource-4.14.3_04-3.15.1
  • xen-libs-debuginfo-4.14.3_04-3.15.1
  • xen-tools-domU-debuginfo-4.14.3_04-3.15.1
  • xen-libs-4.14.3_04-3.15.1
  • xen-devel-4.14.3_04-3.15.1
  • xen-tools-domU-4.14.3_04-3.15.1
• openSUSE Leap 15.3 (x86_64)
  • xen-libs-32bit-debuginfo-4.14.3_04-3.15.1
  • xen-libs-32bit-4.14.3_04-3.15.1
• openSUSE Leap 15.3 (aarch64 x86_64)
  • xen-4.14.3_04-3.15.1
  • xen-tools-4.14.3_04-3.15.1
  • xen-doc-html-4.14.3_04-3.15.1
  • xen-tools-debuginfo-4.14.3_04-3.15.1
• openSUSE Leap 15.3 (noarch)
  • xen-tools-xendomains-wait-disk-4.14.3_04-3.15.1
• openSUSE Leap 15.3 (aarch64_ilp32)
  • xen-libs-64bit-4.14.3_04-3.15.1
  • xen-libs-64bit-debuginfo-4.14.3_04-3.15.1
• Basesystem Module 15-SP3 (x86_64)
  • xen-debugsource-4.14.3_04-3.15.1
  • xen-libs-debuginfo-4.14.3_04-3.15.1
  • xen-tools-domU-debuginfo-4.14.3_04-3.15.1
  • xen-libs-4.14.3_04-3.15.1
  • xen-tools-domU-4.14.3_04-3.15.1
• Server Applications Module 15-SP3 (x86_64)
  • xen-debugsource-4.14.3_04-3.15.1
  • xen-4.14.3_04-3.15.1
  • xen-tools-4.14.3_04-3.15.1
  • xen-tools-debuginfo-4.14.3_04-3.15.1
  • xen-devel-4.14.3_04-3.15.1
• Server Applications Module 15-SP3 (noarch)
  • xen-tools-xendomains-wait-disk-4.14.3_04-3.15.1
• SUSE Linux Enterprise Micro 5.1 (x86_64)
  • xen-debugsource-4.14.3_04-3.15.1
  • xen-libs-4.14.3_04-3.15.1
  • xen-libs-debuginfo-4.14.3_04-3.15.1

References:

• https://www.suse.com/security/cve/CVE-2021-28702.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=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1191363
• 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