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SUSE: 2020:1633-1 Important: Xen Side Channel Attack Fix

suse
Calendar Grey June 17, 2020
Dist Suse Esm H88
SUSE has released a security enhancement for xen to tackle a significant side channel vulnerability, providing updates for affected software.
An update that solves one vulnerability and has two fixes is now available

Summary

This update for xen fixes the following issues: - CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or "CrossTalk" (bsc#1172205). - Fixed an issue with efi boot when nvidia optimus or newer graphic cards are used (bsc#1168178).d 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 Software Development Kit 12-SP5: zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-1633=1 - SUSE Linux Enterprise Server 12-SP5:

Topics%20covered

Topics Covered

security advisory software update important fix SUSE xen side channel attack

References

#1027519 #1168178 #1172205

Cross- CVE-2020-0543

Affected Products:

SUSE Linux Enterprise Software Development Kit 12-SP5

SUSE Linux Enterprise Server 12-SP5

https://www.suse.com/security/cve/CVE-2020-0543.html

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1168178

https://bugzilla.suse.com/1172205

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2020:1633-1
Rating: important

Topics%20covered

Topics Covered

security advisory software update important fix SUSE xen side channel attack

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