CVE-2014-1642 Information

Description

The IRQ setup in Xen 4.2.x and 4.3.x when using device passthrough and configured to support a large number of CPUs frees certain memory that may still be intended for use which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html http://osvdb.org/102406 http://secunia.com/advisories/56557 http://security.gentoo.org/glsa/glsa-201407-03.xml http://www.openwall.com/lists/oss-security/2014/01/23/4 http://www.securityfocus.com/bid/65097 http://www.securitytracker.com/id/1029679 http://xenbits.xen.org/xsa/advisory-83.html https://exchange.xforce.ibmcloud.com/vulnerabilities/90649