CVE-2012-5515

Severity: medium (CVSS 4.7 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: 2012-12-13 · updated 2026-06-16

Description

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.

Affected products

xen: through 4.2.0; 3.0.2, 3.0.3, 3.0.4, 3.1.3, 3.1.4, 3.2.0 (+20)

References

http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.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.opensuse.org/opensuse-updates/2013-04/msg00051.html
http://lists.opensuse.org/opensuse-updates/2013-04/msg00052.html
http://lists.xen.org/archives/html/xen-announce/2012-12/msg00001.html
http://secunia.com/advisories/51397
http://secunia.com/advisories/51468

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