CVE-2023-43665
What it is
In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 1.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.5% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.5% · EPSS, next 30 days
- Weakness
- CWE-1284
- Record status
- Modified
Affected
- Djangoproject Django < 3.2.22
- Djangoproject Django < 4.1.12
- Djangoproject Django < 4.2.6
- Fedoraproject Fedora 39
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-43665.md and follow it. Check whether this project is affected by CVE-2023-43665. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://docs.djangoproject.com/en/4.2/releases/security/
- https://www.djangoproject.com/weblog/2023/oct/04/security-releases/
- https://docs.djangoproject.com/en/4.2/releases/security/
- https://www.djangoproject.com/weblog/2023/oct/04/security-releases/
References
- http://www.openwall.com/lists/oss-security/2024/03/04/1
- https://docs.djangoproject.com/en/4.2/releases/security/
- https://groups.google.com/forum/#%21forum/django-announce
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
- https://security.netapp.com/advisory/ntap-20231221-0001/
- https://www.djangoproject.com/weblog/2023/oct/04/security-releases/
- http://www.openwall.com/lists/oss-security/2024/03/04/1
- https://docs.djangoproject.com/en/4.2/releases/security/
- https://groups.google.com/forum/#%21forum/django-announce
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJFRPUHDYJHBH3KYHSPGULQM4JN7BMSU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
- https://security.netapp.com/advisory/ntap-20231221-0001/
- https://www.djangoproject.com/weblog/2023/oct/04/security-releases/