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openSUSE: 2019:1419-1 Important: Addressing Xen Heap Buffer Overflow

opensuse
Calendar Grey May 20, 2019
Dist Opensuse Esm H88
The latest openSUSE xen update targets five critical vulnerabilities, addressing heap buffer overflows and possible info leaks, enhancing system security and stability
An update that fixes 5 vulnerabilities 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

Security issue fixed:

- CVE-2018-20815: Fixed a heap buffer overflow while loading device tree

blob (bsc#1130680)

Other fixes:

- Added code to change LIBXL_HOTPLUG_TIMEOUT at...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory information leak important xen heap buffer overflow openSUSE CPU microcode

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 42.3:

zypper in -t patch openSUSE-2019-1419=1

Package List

- openSUSE Leap 42.3 (i586 x86_64):

xen-debugsource-4.9.4_04-40.1

xen-devel-4.9.4_04-40.1

xen-libs-4.9.4_04-40.1

xen-libs-debuginfo-4.9.4_04-40.1

xen-tools-domU-4.9.4_04-40.1

xen-tools-domU-debuginfo-4.9.4_04-40.1

- openSUSE Leap 42.3 (x86_64):

xen-4.9.4_04-40.1

xen-doc-html-4.9.4_04-40.1

xen-libs-32bit-4.9.4_04-40.1

xen-libs-debuginfo-32bit-4.9.4_04-40.1

xen-tools-4.9.4_04-40.1

xen-tools-debuginfo-4.9.4_04-40.1

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-2018-20815.html

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

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1111331

https://bugzilla.suse.com/1120095

https://bugzilla.suse.com/1130680

--

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2019:1419-1
Rating: important
Affected Products: openSUSE Leap 42.3

Topics%20covered

Topics Covered

security advisory information leak important xen heap buffer overflow openSUSE CPU microcode

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