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CVE Database

CVE-2011-2512

Impact: Important
Public: 2011-05-08
Bugzilla: 717399: CVE-2011-2512 qemu-kvm: OOB memory access caused by negative vq notifies

Details

The MITRE CVE dictionary describes this issue as:

The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.

Find out more about CVE-2011-2512 from the MITRE CVE dictionary and NIST NVD.

Statement

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.

CVSS v2 metrics

Base Score: 6.5
Base Metrics: AV:A/AC:H/Au:S/C:C/I:C/A:C
Access Vector: Adjacent Network
Access Complexity: High
Authentication: Single Instance
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 July 05, 2011

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.