CVE-2011-3131

Public Exploit

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory debian.org Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://xenbits.xen.org/hg/staging/xen-4.1-testing.hg/rev/84e3706df07a exploit
http://www.debian.org/security/2012/dsa-2582 vendor advisory
http://secunia.com/advisories/45622 third party advisory vendor advisory
http://old-list-archives.xen.org/archives/html/xen-devel/2011-08/msg00450.html mailing list
http://secunia.com/advisories/51468 third party advisory vendor advisory
http://old-list-archives.xen.org/archives/html/xen-devel/2011-06/msg01106.html mailing list
http://www.securityfocus.com/bid/49146 vdb entry

Frequently Asked Questions

What is the severity of CVE-2011-3131?
CVE-2011-3131 has been scored as a medium severity vulnerability.
How to fix CVE-2011-3131?
To fix CVE-2011-3131, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-3131 being actively exploited in the wild?
It is possible that CVE-2011-3131 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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