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SUSE: 2019:2961-1 Important: Xen DoS And Security Fixes

suse
Calendar Grey November 12, 2019
Dist Suse Esm H88
Important patch released for SUSE tackling several vulnerabilities linked to xen, as detailed in advisory SUSE-SU-2019:2961-1.
An update that solves 8 vulnerabilities and has one errata is now available

Summary

This update for xen fixes the following issues: - CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a race condition in the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional. (bsc#1155945) - CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate sidechannel information leaks out of microarchitectural buffers, similar to the previously described "Microarchitectural Data Sampling" attack. (bsc#1152497). - CVE-2019-18423: A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). (bsc#1154460). - CVE-2019-18422: A malicious ARM guest might contrive to arrange for

Topics%20covered

Topics Covered

security advisory critical software update DoS patch SUSE xen

References

#1027519 #1152497 #1154448 #1154456 #1154458

#1154460 #1154461 #1154464 #1155945

Cross- CVE-2018-12207 CVE-2019-11135 CVE-2019-18420

CVE-2019-18421 CVE-2019-18422 CVE-2019-18423

CVE-2019-18424 CVE-2019-18425

Affected Products:

SUSE Linux Enterprise Module for Server Applications 15-SP1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1

SUSE Linux Enterprise Module for Basesystem 15-SP1

https://www.suse.com/security/cve/CVE-2018-12207.html

https://www.suse.com/security/cve/CVE-2019-11135.html

https://www.suse.com/security/cve/CVE-2019-18420.html

https://www.suse.com/security/cve/CVE-2019-18421.html

https://www.suse.com/security/cve/CVE-2019-18422.html

https://www.suse.com/security/cve/CVE-2019-18423.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2019:2961-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical software update DoS patch SUSE xen

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