CVE-2012-4537

LOW

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."

References

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html

http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html

http://lists.xen.org/archives/html/xen-announce/2012-11/msg00005.html

http://osvdb.org/87307

http://rhn.redhat.com/errata/RHSA-2012-1540.html

http://secunia.com/advisories/51200

http://secunia.com/advisories/51324

http://secunia.com/advisories/51352

http://secunia.com/advisories/51413

http://secunia.com/advisories/51468

http://secunia.com/advisories/55082

http://security.gentoo.org/glsa/glsa-201309-24.xml

http://www.debian.org/security/2012/dsa-2582

http://www.openwall.com/lists/oss-security/2012/11/13/6

http://www.securityfocus.com/bid/56498

http://www.securitytracker.com/id?1027761

https://exchange.xforce.ibmcloud.com/vulnerabilities/80024

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2012-11-21

Updated: 2017-08-29

Type: CWE-16

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW