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SUSE: 2020:3631-1 Critical: Stack Corruption Threat in Xen

suse
Calendar Grey December 7, 2020
Dist Suse Esm H88
A critical SUSE Security Patch for kernel addresses several vulnerabilities impacting numerous SUSE offerings.
An update that solves 5 vulnerabilities and has one errata is now available

Summary

This update for xen fixes the following issues: - bsc#1178963 - stack corruption from XSA-346 change (XSA-355) - bsc#1177409 - CVE-2020-27674: x86 PV guest INVLPG-like flushes may leave stale TLB entries (XSA-286) - bsc#1177412 - CVE-2020-27672: Race condition in Xen mapping code (XSA-345) - bsc#1177413 - CVE-2020-27671: undue deferral of IOMMU TLB flushes (XSA-346) - bsc#1177414 - CVE-2020-27670: unsafe AMD IOMMU page table updates (XSA-347) - bsc#1178591 - CVE-2020-28368: Intel RAPL sidechannel attack aka PLATYPUS attack aka XSA-351 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 OpenStack Cloud Crowbar 8:

Topics%20covered

Topics Covered

security advisory security update important attack SUSE xen stack corruption openstack cloud infrastructure

References

#1177409 #1177412 #1177413 #1177414 #1178591

#1178963

Cross- CVE-2020-27670 CVE-2020-27671 CVE-2020-27672

CVE-2020-27674 CVE-2020-28368

Affected Products:

SUSE OpenStack Cloud Crowbar 8

SUSE OpenStack Cloud 8

SUSE Linux Enterprise Server for SAP 12-SP3

SUSE Linux Enterprise Server 12-SP3-LTSS

SUSE Linux Enterprise Server 12-SP3-BCL

SUSE Enterprise Storage 5

HPE Helion Openstack 8

https://www.suse.com/security/cve/CVE-2020-27670.html

https://www.suse.com/security/cve/CVE-2020-27671.html

https://www.suse.com/security/cve/CVE-2020-27672.html

https://www.suse.com/security/cve/CVE-2020-27674.html

https://www.suse.com/security/cve/CVE-2020-28368.html

https://bugzilla.suse.com/show_bug.cgi?id=1177409

https://bugzilla.suse.com/show_bug.cgi?id=1177412

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2020:3631-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update important attack SUSE xen stack corruption openstack cloud infrastructure

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