CVE-2019-14232
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.53% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- djangoproject/django · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.htmlThird Party Advisory
- 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://docs.djangoproject.com/en/dev/releases/security/Patch, Vendor Advisory
- 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
- https://security.gentoo.org/glsa/202004-17
- https://security.netapp.com/advisory/ntap-20190828-0002/
- https://www.debian.org/security/2019/dsa-4498
- https://www.djangoproject.com/weblog/2019/aug/01/security-releases/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.htmlThird Party Advisory
- 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://docs.djangoproject.com/en/dev/releases/security/Patch, Vendor Advisory
- 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
- https://security.gentoo.org/glsa/202004-17
- https://security.netapp.com/advisory/ntap-20190828-0002/
- https://www.debian.org/security/2019/dsa-4498
- https://www.djangoproject.com/weblog/2019/aug/01/security-releases/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.