CVE-2019-14232
HIGH severity · CVSS 7.5 · Uncontrolled resource consumption
7.5CVSS HIGH
Summary
An issue was discovered in Django 1.11.x before 1.11.23, 2.1.x before 2.1.11, and 2.2.x before 2.2.4. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://docs.djangoproject.com/en/dev/releases/security/ ↗
Additional information
- NVD record
- https://docs.djangoproject.com/en/dev/releases/security/Patch
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html
- http://www.openwall.com/lists/oss-security/2023/10/04/6
- http://www.openwall.com/lists/oss-security/2024/03/04/1
- https://groups.google.com/forum/#%21topic/django-announce/jIoju2-KLDs
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK/
- https://seclists.org/bugtraq/2019/Aug/15