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openSUSE Leap 15.0: 2019:1403-1 Important: Xen Data Sampling Issues

opensuse
Calendar Grey May 16, 2019
Dist Opensuse Esm H88
A critical security patch for openSUSE addressing various data leak vulnerabilities in xen while enhancing overall system efficiency.
An update that solves four vulnerabilities and has three fixes is now available.

Description

This update for xen fixes the following issues:

Four new speculative execution information leak issues have been

identified in Intel CPUs. (bsc#1111331)

- CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)

- CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)

- CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)

- CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory

(MDSUM)

These updates contain the XEN Hypervisor adjustments, that additionaly

also use CPU Microcode updates.

The mitigation can be controlled via the "mds" commandline option, see the

documentation.

For more information on this set of vulnerabilities, check out

https://support.scc.suse.com/s/kb?language=en_US

Other fixes:

- Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.

The included README has details about the impact of this change

(bsc#1120095)

- Fixes in Live migrating PV...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory information leak important xen openSUSE data sampling CPU threats

Patch

Patch Instructions:

To install this openSUSE 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:

- openSUSE Leap 15.0:

zypper in -t patch openSUSE-2019-1403=1

Package List

- openSUSE Leap 15.0 (i586 x86_64):

xen-debugsource-4.10.3_04-lp150.2.19.1

xen-devel-4.10.3_04-lp150.2.19.1

xen-libs-4.10.3_04-lp150.2.19.1

xen-libs-debuginfo-4.10.3_04-lp150.2.19.1

xen-tools-domU-4.10.3_04-lp150.2.19.1

xen-tools-domU-debuginfo-4.10.3_04-lp150.2.19.1

- openSUSE Leap 15.0 (x86_64):

xen-4.10.3_04-lp150.2.19.1

xen-doc-html-4.10.3_04-lp150.2.19.1

xen-libs-32bit-4.10.3_04-lp150.2.19.1

xen-libs-32bit-debuginfo-4.10.3_04-lp150.2.19.1

xen-tools-4.10.3_04-lp150.2.19.1

xen-tools-debuginfo-4.10.3_04-lp150.2.19.1

References

https://www.suse.com/security/cve/CVE-2018-12126.html

https://www.suse.com/security/cve/CVE-2018-12127.html

https://www.suse.com/security/cve/CVE-2018-12130.html

https://www.suse.com/security/cve/CVE-2019-11091.html

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1079730

https://bugzilla.suse.com/1098403

https://bugzilla.suse.com/1111025

https://bugzilla.suse.com/1111331

https://bugzilla.suse.com/1120067

https://bugzilla.suse.com/1120095

--

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2019:1403-1
Rating: important
Affected Products: openSUSE Leap 15.0 le.

Topics%20covered

Topics Covered

security advisory information leak important xen openSUSE data sampling CPU threats

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