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Fencer Intel
low 2.1

CVE-2013-4463 json

OpenStack Nova denial of service through compressed disk images

published 12y ago modified 4mo ago also GHSA-5644-2v3h-5w4x , PYSEC-2026-865 , EUVD-2022-2506

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 31%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi nova 12.0.0a0
  • nova Debian 14, Debian 13, Debian 12 2013.2-3

debian advisories DEBIAN-CVE-2013-4463

  • openstack-nova openstack 3 2013.1.4-4.el6ost
  • python-nova openstack 3 2013.1.4-4.el6ost
  • openstack-nova-api openstack 3 2013.1.4-4.el6ost
  • openstack-nova-cert openstack 3 2013.1.4-4.el6ost
  • openstack-nova-cells openstack 3 2013.1.4-4.el6ost
  • openstack-nova-common openstack 3 2013.1.4-4.el6ost
  • openstack-nova-compute openstack 3 2013.1.4-4.el6ost
  • openstack-nova-console openstack 3 2013.1.4-4.el6ost

red hat advisories RHSA-2014:0112

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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-2013-4463 updated cvss 4.0

Nova: Compressed disk image DoS

  • Red Hat OpenStack Platform 4 openstack-nova
    affected: no fix available
  • Red Hat Enterprise Linux OpenStack Platform 3.0 python-nova 2013.1.4-4.el6ost, openstack-nova 2013.1.4-4.el6ost, openstack-nova-api 2013.1.4-4.el6ost, openstack-nova-cert 2013.1.4-4.el6ost, openstack-nova-cells 2013.1.4-4.el6ost, openstack-nova-common 2013.1.4-4.el6ost, +6 more
    fixed: vendor fix RHSA-2014:0112

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

0.37% chance of exploitation in the next 30 days, higher than 31% 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

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.