{"id":"CVE-2012-4537","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-4537","generatedAt":"2026-10-27T18:46:42.998Z","title":"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…","description":"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.\"","published":"2012-11-21T23:55:02.000Z","lastModified":"2026-06-16T23:45:17.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":2.1,"severity":"LOW","vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P"},"cwe":["CWE-16"],"affected":["xen/xen"],"epss":{"score":0.00437,"percentile":0.37719,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html","source":"secalert@redhat.com"},{"url":"http://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://osvdb.org/87307","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2012-1540.html","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/51200","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/51324","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/51352","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/51413","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/51468","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/55082","source":"secalert@redhat.com"},{"url":"http://security.gentoo.org/glsa/glsa-201309-24.xml","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2012/dsa-2582","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/11/13/6","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/56498","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1027761","source":"secalert@redhat.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/80024","source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/201604-03","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://osvdb.org/87307","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2012-1540.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51200","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51324","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51352","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51413","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/51468","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/55082","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://security.gentoo.org/glsa/glsa-201309-24.xml","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2012/dsa-2582","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/11/13/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/56498","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1027761","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/80024","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201604-03","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-4537","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}