National Cyber Awareness System

Vulnerability Summary for CVE-2012-4537

Overview

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."

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: XF

Name: xen-setp2mentry-dos(80024)

Hyperlink:http://xforce.iss.net/xforce/xfdb/80024

External Source: SECTRACK

Name: 1027761

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

External Source: MLIST

Name: [oss-security] 20121113 Xen Security Advisory 22 (CVE-2012-4537) - Memory mapping failure DoS vulnerability

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

External Source: DEBIAN

Name: DSA-2582

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

External Source: SECUNIA

Name: 51468

Hyperlink:http://secunia.com/advisories/51468

External Source: REDHAT

Name: RHSA-2012:1540

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

External Source: OSVDB

Name: 87307

Hyperlink:http://osvdb.org/87307

External Source: MLIST

Name: [Xen-announce] 20121113 Xen Security Advisory 22 (CVE-2012-4537) - Memory mapping failure DoS vulnerability

Type: Advisory

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

External Source: SUSE

Name: SUSE-SU-2012:1615

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

External Source: SUSE

Name: openSUSE-SU-2012:1572

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

External Source: SUSE

Name: SUSE-SU-2012:1487

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

External Source: SUSE

Name: SUSE-SU-2012:1486

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