SUSE Security Update: Security update for xen ______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2611-1 Rating: important References: #1056278 #1056281 #1056282 Cross-References: CVE-2017-14316 CVE-2017-14317 CVE-2017-14319

Affected Products: SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Point of Sale 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP3 ______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:

- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an internal array allowed attackers using crafted hypercalls to execute arbitrary code within Xen (XSA-231, bsc#1056278) - CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281). - CVE-2017-14319: An error while handling grant mappings allowed malicious or buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234, bsc#1056282).

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 Server 11-SP3-LTSS:

zypper in -t patch slessp3-xen-13283=1

- SUSE Linux Enterprise Point of Sale 11-SP3:

zypper in -t patch sleposp3-xen-13283=1

- SUSE Linux Enterprise Debuginfo 11-SP3:

zypper in -t patch dbgsp3-xen-13283=1

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

Package List:

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.8.1 xen-libs-4.2.5_21-45.8.1 xen-tools-domU-4.2.5_21-45.8.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):

xen-4.2.5_21-45.8.1 xen-doc-html-4.2.5_21-45.8.1 xen-doc-pdf-4.2.5_21-45.8.1 xen-libs-32bit-4.2.5_21-45.8.1 xen-tools-4.2.5_21-45.8.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586):

xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.8.1

- SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.8.1 xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.8.1 xen-libs-4.2.5_21-45.8.1 xen-tools-domU-4.2.5_21-45.8.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):

xen-debuginfo-4.2.5_21-45.8.1 xen-debugsource-4.2.5_21-45.8.1

References:

https://www.suse.com/security/cve/CVE-2017-14316.html https://www.suse.com/security/cve/CVE-2017-14317.html https://www.suse.com/security/cve/CVE-2017-14319.html https://bugzilla.suse.com/1056278 https://bugzilla.suse.com/1056281 https://bugzilla.suse.com/1056282