Security update for xen

Announcement ID:	SUSE-SU-2021:3322-1
Rating:	moderate
References:	bsc#1182654 bsc#1186429 bsc#1186433 bsc#1186434 bsc#1187369 bsc#1187376 bsc#1187378 bsc#1189373 bsc#1189376 bsc#1189378 bsc#1189632 bsc#1189882
Cross-References:	CVE-2021-0089 CVE-2021-20255 CVE-2021-28690 CVE-2021-28692 CVE-2021-28694 CVE-2021-28695 CVE-2021-28696 CVE-2021-28697 CVE-2021-28698 CVE-2021-28701 CVE-2021-3592 CVE-2021-3594 CVE-2021-3595
CVSS scores:	CVE-2021-0089 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-0089 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-20255 ( SUSE ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L CVE-2021-20255 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28690 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-28690 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2021-28692 ( SUSE ): 4.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L CVE-2021-28692 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2021-28694 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28694 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28695 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28695 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28696 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28696 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28697 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-28697 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-28698 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2021-28698 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 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-2021-3592 ( SUSE ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVE-2021-3592 ( NVD ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVE-2021-3594 ( SUSE ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVE-2021-3594 ( NVD ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVE-2021-3595 ( SUSE ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVE-2021-3595 ( NVD ): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2

An update that solves 13 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-2021-28694,CVE-2021-28695,CVE-2021-28696: Fixed IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).

• CVE-2021-28697: Fixed grant table v2 status pages that may remain accessible after de-allocation (XSA-379)(bsc#1189376).
• CVE-2021-28698: Fixed long running loops in grant table handling (XSA-380)(bsc#1189378).
• CVE-2021-20255: Fixed eepro100 stack overflow via infinite recursion (bsc#1182654).
• CVE-2021-3592: Fixed invalid pointer initialization may lead to information disclosure (bootp) (bsc#1187369).
• CVE-2021-3594: Fixed invalid pointer initialization may lead to information disclosure (udp) (bsc#1187378).
• CVE-2021-3595: Fixed invalid pointer initialization may lead to information disclosure (tftp) (bsc#1187376).
• CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling (XSA-373)(bsc#1186429).
• CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375)(bsc#1186433).

• CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3 (XSA-377)(bsc#1186434).

• Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#1189882).

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 12 SP2 BCL 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-3322=1

Package List:

• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
  • xen-libs-4.7.6_16-43.79.5
  • xen-tools-domU-debuginfo-4.7.6_16-43.79.5
  • xen-doc-html-4.7.6_16-43.79.5
  • xen-libs-debuginfo-32bit-4.7.6_16-43.79.5
  • xen-libs-32bit-4.7.6_16-43.79.5
  • xen-debugsource-4.7.6_16-43.79.5
  • xen-tools-domU-4.7.6_16-43.79.5
  • xen-tools-4.7.6_16-43.79.5
  • xen-tools-debuginfo-4.7.6_16-43.79.5
  • xen-4.7.6_16-43.79.5
  • xen-libs-debuginfo-4.7.6_16-43.79.5

References:

• https://www.suse.com/security/cve/CVE-2021-0089.html
• https://www.suse.com/security/cve/CVE-2021-20255.html
• https://www.suse.com/security/cve/CVE-2021-28690.html
• https://www.suse.com/security/cve/CVE-2021-28692.html
• https://www.suse.com/security/cve/CVE-2021-28694.html
• https://www.suse.com/security/cve/CVE-2021-28695.html
• https://www.suse.com/security/cve/CVE-2021-28696.html
• https://www.suse.com/security/cve/CVE-2021-28697.html
• https://www.suse.com/security/cve/CVE-2021-28698.html
• https://www.suse.com/security/cve/CVE-2021-28701.html
• https://www.suse.com/security/cve/CVE-2021-3592.html
• https://www.suse.com/security/cve/CVE-2021-3594.html
• https://www.suse.com/security/cve/CVE-2021-3595.html
• https://bugzilla.suse.com/show_bug.cgi?id=1182654
• https://bugzilla.suse.com/show_bug.cgi?id=1186429
• https://bugzilla.suse.com/show_bug.cgi?id=1186433
• https://bugzilla.suse.com/show_bug.cgi?id=1186434
• https://bugzilla.suse.com/show_bug.cgi?id=1187369
• https://bugzilla.suse.com/show_bug.cgi?id=1187376
• https://bugzilla.suse.com/show_bug.cgi?id=1187378
• https://bugzilla.suse.com/show_bug.cgi?id=1189373
• https://bugzilla.suse.com/show_bug.cgi?id=1189376
• 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=1189882