SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2015:0923-1
Rating: important
References: #922705 #922709 #927967 #929339
Cross-References: CVE-2015-2751 CVE-2015-2752 CVE-2015-3340
CVE-2015-3456
Affected Products:
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Desktop 12
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An update that fixes four vulnerabilities is now available.

Description:

XEN was updated to fix two security issues and bugs.

Security issues fixed:
* CVE-2015-3340: Xen did not initialize certain fields, which allowed
certain remote service domains to obtain sensitive information from
memory via a (1) XEN_DOMCTL_gettscinfo or (2)
XEN_SYSCTL_getdomaininfolist request.

* CVE-2015-2751: Xen, when using toolstack disaggregation, allowed remote
domains with partial management control to cause a denial of service
(host lock) via unspecified domctl operations.

* CVE-2015-2752: The XEN_DOMCTL_memory_mapping hypercall in Xen, when
using a PCI passthrough device, was not preemptable, which allowed local
x86 HVM domain users to cause a denial of service (host CPU consumption)
via a crafted request to the device model (qemu-dm).

* CVE-2015-3456: Fixed a buffer overflow in the floppy drive emulation,
which could be used to denial of service attacks or potential code
execution against the host.

Bugs fixed:
– xentop: Fix memory leak on read failure

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

– SUSE Linux Enterprise Software Development Kit 12:

zypper in -t patch SUSE-SLE-SDK-12-2015-206=1

– SUSE Linux Enterprise Server 12:

zypper in -t patch SUSE-SLE-SERVER-12-2015-206=1

– SUSE Linux Enterprise Desktop 12:

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-206=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– SUSE Linux Enterprise Software Development Kit 12 (x86_64):

xen-debugsource-4.4.2_04-18.1
xen-devel-4.4.2_04-18.1

– SUSE Linux Enterprise Server 12 (x86_64):

xen-4.4.2_04-18.1
xen-debugsource-4.4.2_04-18.1
xen-doc-html-4.4.2_04-18.1
xen-kmp-default-4.4.2_04_k3.12.39_47-18.1
xen-kmp-default-debuginfo-4.4.2_04_k3.12.39_47-18.1
xen-libs-32bit-4.4.2_04-18.1
xen-libs-4.4.2_04-18.1
xen-libs-debuginfo-32bit-4.4.2_04-18.1
xen-libs-debuginfo-4.4.2_04-18.1
xen-tools-4.4.2_04-18.1
xen-tools-debuginfo-4.4.2_04-18.1
xen-tools-domU-4.4.2_04-18.1
xen-tools-domU-debuginfo-4.4.2_04-18.1

– SUSE Linux Enterprise Desktop 12 (x86_64):

xen-4.4.2_04-18.1
xen-debugsource-4.4.2_04-18.1
xen-kmp-default-4.4.2_04_k3.12.39_47-18.1
xen-kmp-default-debuginfo-4.4.2_04_k3.12.39_47-18.1
xen-libs-32bit-4.4.2_04-18.1
xen-libs-4.4.2_04-18.1
xen-libs-debuginfo-32bit-4.4.2_04-18.1
xen-libs-debuginfo-4.4.2_04-18.1

References:

https://www.suse.com/security/cve/CVE-2015-2751.html
https://www.suse.com/security/cve/CVE-2015-2752.html
https://www.suse.com/security/cve/CVE-2015-3340.html
https://www.suse.com/security/cve/CVE-2015-3456.html
https://bugzilla.suse.com/922705
https://bugzilla.suse.com/922709
https://bugzilla.suse.com/927967
https://bugzilla.suse.com/929339

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