CVE-2012-6031 Information

Description

The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0 4.1 and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the \bad_copy error path.\ NOTE: this issue was originally published as part of CVE-2012-3497 which was too general; CVE-2012-3497 has been SPLIT into this ID and others.

Reference

http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html http://osvdb.org/85199 http://secunia.com/advisories/50472 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://wiki.xen.org/wiki/Security_AnnouncementsXSA-15_multiple_TMEM_hypercall_vulnerabilities http://www.openwall.com/lists/oss-security/2012/09/05/8 http://www.securityfocus.com/bid/55410 http://www.securitytracker.com/id?1027482 https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 https://security.gentoo.org/glsa/201604-03