What’s Vulnerable › Vulnerabilities

CVE-2012-4537

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-11-21 · updated 2026-06-16
• Weakness: CWE-16

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."

Affected products

• xen: 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 4.0.0 (+9)

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

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