Public Date:
713589: CVE-2011-2212 qemu-kvm: virtqueue: too-large indirect descriptor buffer overflow

The MITRE CVE dictionary describes this issue as:

Buffer overflow in the virtio subsystem in qemu-kvm 0.14.0 and earlier allows privileged guest users to cause a denial of service (guest crash) or gain privileges via a crafted indirect descriptor related to "virtqueue in and out requests."

Find out more about CVE-2011-2212 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue only affects Red Hat Enterprise Linux 6. The version of the qemu/kvm as shipped with Red Hat Enterprise Linux 5 is not affected because it does not provide support for indirect descriptors.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 7.4
Base Metrics AV:A/AC:M/Au:S/C:C/I:C/A:C
Access Vector Adjacent Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (qemu-kvm) RHSA-2011:0919 2011-07-05

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kvm Not affected


Red Hat would like to thank Nelson Elhage for reporting this issue.