SUSE Security Update: Security update for xen ______________________________________________________________________________

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 ______________________________________________________________________________

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