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openSUSE Leap 15.0: 2018:2436-1 Important: Xen Info Disclosure

opensuse
Calendar Grey August 19, 2018
Scroller Opensuse
An essential openSUSE upgrade focused on resolving significant vulnerabilities in Xen, alongside two enhancements aimed at boosting system stability.
An update that solves one vulnerability and has two fixes is now available.

Description

This update for xen fixes the following security issues:

- CVE-2018-3646: Systems with microprocessors utilizing speculative

execution and address translations may have allowed unauthorized

disclosure of information residing in the L1 data cache to an attacker

with local user access with guest OS privilege via a terminal page fault

and a side-channel analysis (bsc#1091107, bsc#1027519).

- Incorrect MSR_DEBUGCTL handling let guests enable BTS allowing a

malicious or buggy guest administrator can lock up the entire host

(bsc#1103276)

This update was imported from the SUSE:SLE-15:Update update project.

Topics%20covered

Topics Covered

security advisory important information disclosure xen openSUSE speculative execution

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-2018-911=1

Package List

- openSUSE Leap 15.0 (i586 x86_64):

xen-debugsource-4.10.1_08-lp150.2.9.1

xen-devel-4.10.1_08-lp150.2.9.1

xen-libs-4.10.1_08-lp150.2.9.1

xen-libs-debuginfo-4.10.1_08-lp150.2.9.1

xen-tools-domU-4.10.1_08-lp150.2.9.1

xen-tools-domU-debuginfo-4.10.1_08-lp150.2.9.1

- openSUSE Leap 15.0 (x86_64):

xen-4.10.1_08-lp150.2.9.1

xen-doc-html-4.10.1_08-lp150.2.9.1

xen-libs-32bit-4.10.1_08-lp150.2.9.1

xen-libs-32bit-debuginfo-4.10.1_08-lp150.2.9.1

xen-tools-4.10.1_08-lp150.2.9.1

xen-tools-debuginfo-4.10.1_08-lp150.2.9.1

References

https://www.suse.com/security/cve/CVE-2018-3646.html

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1091107

https://bugzilla.suse.com/1103276

--

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2018:2436-1
Rating: important
Affected Products: openSUSE Leap 15.0 le.

Topics%20covered

Topics Covered

security advisory important information disclosure xen openSUSE speculative execution

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