Vulnerability CVE-2019-14232


Published: 2019-08-02

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.

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Opensuse -> LEAP 
Djangoproject -> Django 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html
https://docs.djangoproject.com/en/dev/releases/security/
https://groups.google.com/forum/#!topic/django-announce/jIoju2-KLDs
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/STVX7X7IDWAH5SKE6MBMY3TEI6ZODBTK/
https://seclists.org/bugtraq/2019/Aug/15
https://www.debian.org/security/2019/dsa-4498
https://www.djangoproject.com/weblog/2019/aug/01/security-releases/

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