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AUSCERT External Security Bulletin Redistribution
ESB-2021.1332
Security update for xen
21 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Modify Arbitrary Files -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27379
Reference: ESB-2021.1314
ESB-2021.1205
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20211268-1
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SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:1268-1
Rating: important
References: #1182155 #1182431
Cross-References: CVE-2021-27379
Affected Products:
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________
An update that solves one vulnerability and has one errata is now available.
Description:
This update for xen fixes the following issues:
o CVE-2021-27379: Fixed an issue where entries in the IOMMU were not being
updated under certain circumstances due to improper backport of XSA-321
(XSA-366, bsc#1182431)
o Fixed an issue where xenstored was crashing with segfault (bsc#1182155).
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 OpenStack Cloud 7:
zypper in -t patch SUSE-OpenStack-Cloud-7-2021-1268=1
o SUSE Linux Enterprise Server 12-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-1268=1
Package List:
o SUSE OpenStack Cloud 7 (x86_64):
xen-4.7.6_14-43.76.1
xen-debugsource-4.7.6_14-43.76.1
xen-doc-html-4.7.6_14-43.76.1
xen-libs-32bit-4.7.6_14-43.76.1
xen-libs-4.7.6_14-43.76.1
xen-libs-debuginfo-32bit-4.7.6_14-43.76.1
xen-libs-debuginfo-4.7.6_14-43.76.1
xen-tools-4.7.6_14-43.76.1
xen-tools-debuginfo-4.7.6_14-43.76.1
xen-tools-domU-4.7.6_14-43.76.1
xen-tools-domU-debuginfo-4.7.6_14-43.76.1
o SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
xen-4.7.6_14-43.76.1
xen-debugsource-4.7.6_14-43.76.1
xen-doc-html-4.7.6_14-43.76.1
xen-libs-32bit-4.7.6_14-43.76.1
xen-libs-4.7.6_14-43.76.1
xen-libs-debuginfo-32bit-4.7.6_14-43.76.1
xen-libs-debuginfo-4.7.6_14-43.76.1
xen-tools-4.7.6_14-43.76.1
xen-tools-debuginfo-4.7.6_14-43.76.1
xen-tools-domU-4.7.6_14-43.76.1
xen-tools-domU-debuginfo-4.7.6_14-43.76.1
References:
o https://www.suse.com/security/cve/CVE-2021-27379.html
o https://bugzilla.suse.com/1182155
o https://bugzilla.suse.com/1182431
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