CVE-2012-4537

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."

🔗 References (46)

• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html
• secalert@redhathttp://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html
• secalert@redhathttp://osvdb.org/87307
• secalert@redhathttp://rhn.redhat.com/errata/RHSA-2012-1540.html
• secalert@redhathttp://secunia.com/advisories/51200
• secalert@redhathttp://secunia.com/advisories/51324
• secalert@redhathttp://secunia.com/advisories/51352
• secalert@redhathttp://secunia.com/advisories/51413
• secalert@redhathttp://secunia.com/advisories/51468