CVE-2013-1920 Information

Description

Xen 4.2.x 4.1.x and earlier when the hypervisor is running \under memory pressure\ and the Xen Security Module (XSM) is enabled uses the wrong ordering of operations when extending the per-domain event channel tracking table which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.

Reference

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html http://lists.xen.org/archives/html/xen-announce/2013-04/msg00000.html http://osvdb.org/92050 http://secunia.com/advisories/52857 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://www.openwall.com/lists/oss-security/2013/04/04/7 http://www.securityfocus.com/bid/58880 http://www.securitytracker.com/id/1028388 https://exchange.xforce.ibmcloud.com/vulnerabilities/83226