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Fencer Intel
medium 4.3

CVE-2013-4179 json

OpenStack Compute (Nova) vulnerable to denial of service via XML Entity Expansion attack

published 13y ago modified last mo. also GHSA-j6xh-q826-55jw , PYSEC-2026-875 , EUVD-2022-4295

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

The security group extension in OpenStack Compute (Nova) Grizzly 2013.1.3, Havana before havana-3, and earlier allows remote attackers to cause a denial of service (resource consumption and crash) via an XML Entity Expansion (XEE) attack. NOTE: this issue is due to an incomplete fix for CVE-2013-1664.

Patch / fix

  • pypi nova 2013.2
  • nova Debian 14, Debian 13, Debian 12 2013.1.3-1

debian advisories DEBIAN-CVE-2013-4179

  • openstack-nova openstack 3 2013.1.3-3.el6ost
  • python-nova openstack 3 2013.1.3-3.el6ost
  • openstack-nova-api openstack 3 2013.1.3-3.el6ost
  • openstack-nova-cert openstack 3 2013.1.3-3.el6ost
  • openstack-nova-cells openstack 3 2013.1.3-3.el6ost
  • openstack-nova-common openstack 3 2013.1.3-3.el6ost
  • openstack-nova-compute openstack 3 2013.1.3-3.el6ost
  • openstack-nova-console openstack 3 2013.1.3-3.el6ost

red hat advisories RHSA-2013:1199

Is CVE-2013-4179 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2013-4179 updated cvss 4.0

OpenStack: Nova XML entities DoS

  • Red Hat OpenStack Platform 4 openstack-nova
    affected: no fix available
  • Red Hat Enterprise Linux OpenStack Platform 3.0 python-nova 2013.1.3-3.el6ost, openstack-nova 2013.1.3-3.el6ost, openstack-nova-api 2013.1.3-3.el6ost, openstack-nova-cert 2013.1.3-3.el6ost, openstack-nova-cells 2013.1.3-3.el6ost, openstack-nova-common 2013.1.3-3.el6ost, +6 more
    fixed: vendor fix RHSA-2013:1199

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

2.73% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/ossa/+bug/1190229 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
pypi nova
<2013.2
2013.2

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.