CVE-2012-0218

Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.

🔗 References (8)

• security@debianhttp://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html
• security@debianhttp://secunia.com/advisories/55082
• security@debianhttp://security.gentoo.org/glsa/glsa-201309-24.xml
• security@debianhttp://www.debian.org/security/2012/dsa-2501
• af854a3a-2127-422b-91ae-364da2661108http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html
• af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/55082
• af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-201309-24.xml
• af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2012/dsa-2501