Vulnerability · Published Mar 15, 2024 · Assigned by mitre
CVE-2024-27351
Medium 5.3
In plain English
A medium-severity regular-expression denial of service in the py3-django package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
In Django 3.2 before 3.2.25, 4.2 before 4.2.11, and 5.0 before 5.0.3, the django.utils.text.Truncator.words() method (with html=True) and the truncatewords_html template filter are subject to a potential regular expression denial-of-service attack via a crafted string. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232 and CVE-2023-43665.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | py3-django | 4.2.11-r0 | ALPINE-CVE-2024-27351 |
| Alpine:v3.21 | py3-django | 4.2.11-r0 | ALPINE-CVE-2024-27351 |
| Alpine:v3.22 | py3-django | 4.2.11-r0 | ALPINE-CVE-2024-27351 |
| Alpine:v3.23 | py3-django | 4.2.11-r0 | ALPINE-CVE-2024-27351 |
| Alpine:v3.24 | py3-django | 4.2.11-r0 | ALPINE-CVE-2024-27351 |
| Debian:12 | python-django | 3:3.2.25-0+deb12u1 | DEBIAN-CVE-2024-27351 |
| Debian:12 | python-django | 3:3.2.25-0+deb12u1 | DSA-6136-1 |
| Debian:13 | python-django | 3:4.2.11-1 | DEBIAN-CVE-2024-27351 |
| Debian:14 | python-django | 3:4.2.11-1 | DEBIAN-CVE-2024-27351 |
| PyPI | django | 3.2.25, 4.2.11, 5.0.3 | PYSEC-2024-47 |
| PyPI | django | 5.0.3 | GHSA-vm8q-m57g-pff3 |
| PyPI | django | 4.2.11 | GHSA-vm8q-m57g-pff3 |
| PyPI | django | 3.2.25 | GHSA-vm8q-m57g-pff3 |
| Ubuntu:22.04:LTS | python-django | 2:3.2.12-2ubuntu1.11 | USN-6674-1 |
| Ubuntu:22.04:LTS | python-django | 2:3.2.12-2ubuntu1.11 | UBUNTU-CVE-2024-27351 |
| Ubuntu:24.04:LTS | python-django | 3:4.2.11-1 | UBUNTU-CVE-2024-27351 |
Affected products (as reported)
Weakness: CWE-1333 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://groups.google.com/forum/#%21forum/django-announce
- https://docs.djangoproject.com/en/5.0/releases/security/
- https://www.djangoproject.com/weblog/2024/mar/04/security-releases/
- FEDORA-2024-5c7fb64c74 vendor-advisory
- FEDORA-2024-2ec03ca8cb vendor-advisory
- FEDORA-2024-84fbbbb914 vendor-advisory
- [oss-security] 20240304 Django: CVE-2024-27351: Potential regular expression denial-of-service in django.utils.text.Truncator.words() mailing-list
- https://github.com/django/django/commit/3394fc6132436eca89e997083bae9985fb7e761e
- https://github.com/django/django/commit/3c9a2771cc80821e041b16eb36c1c37af5349d4a
- https://github.com/django/django/commit/072963e4c4d0b3a7a8c5412bc0c7d27d1a9c3521
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SN2PLJGYSAAG5KUVIUFJYKD3BLQ4OSN6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2JIRXEDP4ZET5KFMAPPYSK663Q52NEX/