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AUSCERT External Security Bulletin Redistribution
ESB-2021.3360
Security update for xen
11 October 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-28701 CVE-2021-28698 CVE-2021-28697
CVE-2021-28696 CVE-2021-28695 CVE-2021-28694
CVE-2021-28692 CVE-2021-28690 CVE-2021-20255
CVE-2021-3595 CVE-2021-3594 CVE-2021-3592
CVE-2021-0089
Reference: ESB-2021.3336
ESB-2021.3223
ESB-2021.3151
ESB-2021.3026
ESB-2021.3020
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20213322-1
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SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:3322-1
Rating: moderate
References: #1182654 #1186429 #1186433 #1186434 #1187369 #1187376
#1187378 #1189373 #1189376 #1189378 #1189632 #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
Affected Products:
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________
An update that fixes 13 vulnerabilities is now available.
Description:
This update for xen fixes the following issues:
o CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling
(XSA-384) (bsc#1189632).
o CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: Fixed IOMMU page mapping
issues on x86 (XSA-378)(bsc#1189373).
o CVE-2021-28697: Fixed grant table v2 status pages that may remain
accessible after de-allocation (XSA-379)(bsc#1189376).
o CVE-2021-28698: Fixed long running loops in grant table handling (XSA-380)
(bsc#1189378).
o CVE-2021-20255: Fixed eepro100 stack overflow via infinite recursion (bsc#
1182654).
o CVE-2021-3592: Fixed invalid pointer initialization may lead to information
disclosure (bootp) (bsc#1187369).
o CVE-2021-3594: Fixed invalid pointer initialization may lead to information
disclosure (udp) (bsc#1187378).
o CVE-2021-3595: Fixed invalid pointer initialization may lead to information
disclosure (tftp) (bsc#1187376).
o CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection / handling
(XSA-373)(bsc#1186429).
o CVE-2021-0089: Fixed Speculative Code Store Bypass (XSA-375)(bsc#1186433).
o CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after S3
(XSA-377)(bsc#1186434).
o Prevent superpage allocation in the LAPIC and ACPI_INFO range (bsc#
1189882).
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:
o SUSE Linux Enterprise Server 12-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-3322=1
Package List:
o SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
xen-4.7.6_16-43.79.5
xen-debugsource-4.7.6_16-43.79.5
xen-doc-html-4.7.6_16-43.79.5
xen-libs-32bit-4.7.6_16-43.79.5
xen-libs-4.7.6_16-43.79.5
xen-libs-debuginfo-32bit-4.7.6_16-43.79.5
xen-libs-debuginfo-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-tools-domU-4.7.6_16-43.79.5
xen-tools-domU-debuginfo-4.7.6_16-43.79.5
References:
o https://www.suse.com/security/cve/CVE-2021-0089.html
o https://www.suse.com/security/cve/CVE-2021-20255.html
o https://www.suse.com/security/cve/CVE-2021-28690.html
o https://www.suse.com/security/cve/CVE-2021-28692.html
o https://www.suse.com/security/cve/CVE-2021-28694.html
o https://www.suse.com/security/cve/CVE-2021-28695.html
o https://www.suse.com/security/cve/CVE-2021-28696.html
o https://www.suse.com/security/cve/CVE-2021-28697.html
o https://www.suse.com/security/cve/CVE-2021-28698.html
o https://www.suse.com/security/cve/CVE-2021-28701.html
o https://www.suse.com/security/cve/CVE-2021-3592.html
o https://www.suse.com/security/cve/CVE-2021-3594.html
o https://www.suse.com/security/cve/CVE-2021-3595.html
o https://bugzilla.suse.com/1182654
o https://bugzilla.suse.com/1186429
o https://bugzilla.suse.com/1186433
o https://bugzilla.suse.com/1186434
o https://bugzilla.suse.com/1187369
o https://bugzilla.suse.com/1187376
o https://bugzilla.suse.com/1187378
o https://bugzilla.suse.com/1189373
o https://bugzilla.suse.com/1189376
o https://bugzilla.suse.com/1189378
o https://bugzilla.suse.com/1189632
o https://bugzilla.suse.com/1189882
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