Public Date:
1023239: CVE-2013-4463 OpenStack Nova: Compressed disk image DoS

The MITRE CVE dictionary describes this issue as:

OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not properly verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) via a compressed QCOW2 image. NOTE: this issue is due to an incomplete fix for CVE-2013-2096.

Find out more about CVE-2013-4463 from the MITRE CVE dictionary dictionary and NIST NVD.


The Red Hat Security Response Team has rated this issue as having moderate security impact. For additional information, refer to the Issue Severity Classification:

CVSS v2 metrics

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

Base Score 4
Base Metrics AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

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 OpenStack Platform 3.0 (openstack-nova) RHSA-2014:0112 2014-01-30


Red Hat would like to thank Thierry Carrez of the OpenStack project for reporting this issue. Upstream acknowledges Bernhard M. Wiedemann of SuSE as the original reporter.