Public Date:
1023581: CVE-2013-4469 OpenStack Nova: Incomplete fix for CVE-2013-2096

The MITRE CVE dictionary describes this issue as:

OpenStack Compute (Nova) Folsom, Grizzly, and Havana, when use_cow_images is set to False, does not verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) by transferring an image with a large virtual size that does not contain a large amount of data from Glance. NOTE: this issue is due to an incomplete fix for CVE-2013-2096.

Find out more about CVE-2013-4469 from the MITRE CVE dictionary dictionary and NIST NVD.


The Red Hat Security Response Team has rated this issue as having moderate security impact. This issue only affects systems that implemented the fix for CVE-2013-2096 (Bz963462) which fails to completely address the problem. 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).