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Fencer Intel
medium 5.0

CVE-2013-1664 json

XML Entity Expansion (XEE) in Django

published 13y ago modified 4mo ago also GHSA-qrh7-x6fp-c2mp , PYSEC-2026-801 , EUVD-2022-5025

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.8%
EPSS 4.8% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

The XML libraries for Python 3.4, 3.3, 3.2, 3.1, 2.7, and 2.6, as used in OpenStack Keystone Essex, Folsom, and Grizzly; Compute (Nova) Essex and Folsom; Cinder Folsom; Django; and possibly other products allow remote attackers to cause a denial of service (resource consumption and crash) via an XML Entity Expansion (XEE) attack.

Patch / fix

  • pypi django 1.3.6, 1.4.4
  • nova Debian 14, Debian 13, Debian 12 2012.1.1-13
  • cinder Debian 14, Debian 13, Debian 12 2012.2.3-1
  • keystone Debian 14, Debian 13, Debian 12 2012.1.1-13

debian advisories DEBIAN-CVE-2013-1664

  • Django14 openstack 2 1.4.4-1.el6ost
  • openstack-cinder openstack 2 2012.2.3-4.el6ost
  • python-cinder openstack 2 2012.2.3-4.el6ost
  • openstack-nova openstack 2 2012.2.3-4.el6ost
  • python-nova openstack 2 2012.2.3-4.el6ost
  • openstack-nova-api openstack 2 2012.2.3-4.el6ost
  • openstack-nova-cert openstack 2 2012.2.3-4.el6ost
  • openstack-nova-common openstack 2 2012.2.3-4.el6ost

red hat advisories RHSA-2013:0670RHSA-2013:0658RHSA-2013:0657RHSA-2013:0596

Is CVE-2013-1664 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-2013-1664 updated cvss 4.3

bindings: Internal entity expansion in Python XML libraries inflicts DoS vulnerabilities

  • Red Hat Enterprise Linux 5 python Red Hat Enterprise Linux 6 python, tkinter, python-libs, python-test, python-tools Red Hat Enterprise Linux 7 python, tkinter, python-libs, python-test, python-tools
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Folsom Django14 1.4.4-1.el6ost, python-nova 2012.2.3-4.el6ost, python-cinder 2012.2.3-4.el6ost, openstack-nova 2012.2.3-4.el6ost, python-keystone 2012.2.3-3.el6ost, openstack-cinder 2012.2.3-4.el6ost, +10 more
    fixed: vendor fix RHSA-2013:0670

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

4.77% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/nova/+bug/1100282 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected packages

ecosystem package affected fixed in
pypi django
>=1.3.0, <1.3.6
>=1.4.0, <1.4.4
1.3.6
1.4.4

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-611 Improper Restriction of XML External Entity Reference
Technology feeds

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.