CVE-2012-5515

The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.

🔗 References (46)

• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-12/msg00000.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html
• secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.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.opensuse.org/opensuse-updates/2013-04/msg00051.html
• secalert@redhathttp://lists.opensuse.org/opensuse-updates/2013-04/msg00052.html
• secalert@redhathttp://lists.xen.org/archives/html/xen-announce/2012-12/msg00001.html
• secalert@redhathttp://secunia.com/advisories/51397
• secalert@redhathttp://secunia.com/advisories/51468
• secalert@redhathttp://secunia.com/advisories/51486
• secalert@redhathttp://secunia.com/advisories/51487
• secalert@redhathttp://secunia.com/advisories/51495