CVE-2011-3131

Severity: medium (CVSS 4.6 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: yes
Published: 2012-12-13 · updated 2026-06-16
Weakness: CWE-399

Description

Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock.

Affected products

xen: through 4.1.1

References

http://old-list-archives.xen.org/archives/html/xen-devel/2011-06/msg01106.html
http://old-list-archives.xen.org/archives/html/xen-devel/2011-08/msg00450.html
http://secunia.com/advisories/45622
http://secunia.com/advisories/51468
http://www.debian.org/security/2012/dsa-2582
http://www.securityfocus.com/bid/49146
http://xenbits.xen.org/hg/staging/xen-4.1-testing.hg/rev/84e3706df07a
http://old-list-archives.xen.org/archives/html/xen-devel/2011-06/msg01106.html
http://old-list-archives.xen.org/archives/html/xen-devel/2011-08/msg00450.html
http://secunia.com/advisories/45622
http://secunia.com/advisories/51468
http://www.debian.org/security/2012/dsa-2582

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