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Fencer Intel
low 2.1

CVE-2013-2096 json

OpenStack Compute (Nova) does not verify the virtual size of a QCOW2 image

published 13y ago modified 4mo ago also GHSA-m674-hmx2-ffhq , PYSEC-2026-876 , EUVD-2013-2069

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

OpenStack Compute (Nova) Folsom, Grizzly, and Havana 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 creating an image with a large virtual size that does not contain a large amount of data.

Patch / fix

  • pypi nova 12.0.0a0
  • nova Debian 14, Debian 13, Debian 12 2013.1.2-2

debian advisories DEBIAN-CVE-2013-2096

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2096 updated cvss 4.0

Nova: fails to verify image virtual size denial of service

  • Red Hat OpenStack Platform 3 openstack-nova
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
pypi nova
<12.0.0a0
12.0.0a0

Classification

Weakness
  • CWE-399 Resource Management Errors
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.