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SUSE Linux 15: SUSE-SU-2021:1250-1 Critical: Xen Denial of Service

suse
Calendar Grey April 19, 2021
Scroller Suse
Crucial patch released for the Xen hypervisor on SUSE, tackling severe IOMMU vulnerability. Users should prioritize immediate system updates.
An update that solves one vulnerability and has one errata is now available

Summary

This update for xen fixes the following issues: - 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) 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: - SUSE Linux Enterprise Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-1250=1 - SUSE Linux Enterprise High Performance Computing 15-LTSS: zypper in -t patch SUSE-SLE-Product-HPC-15-2021-1250=1 - SUSE Linux Enterprise High Performance Computing 15-ESPOS: zypper in -t patch SUSE-SLE-Product-HPC-15-2021-1250=1 Package List:

Topics%20covered

Topics Covered

security advisory denial of service SUSE Linux important update Xen IOMMU 8.0 severity

References

#1178591 #1182431

Cross- CVE-2021-27379

CVSS scores:

CVE-2021-27379 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-27379 (SUSE): 7.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

Affected Products:

SUSE Linux Enterprise Server for SAP 15

SUSE Linux Enterprise High Performance Computing 15-LTSS

SUSE Linux Enterprise High Performance Computing 15-ESPOS

https://www.suse.com/security/cve/CVE-2021-27379.html

https://bugzilla.suse.com/1178591

https://bugzilla.suse.com/1182431

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:1250-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SUSE Linux important update Xen IOMMU 8.0 severity

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