Resource Exhaustion Affecting py3-django package, versions <1.11.23-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.52% (87th percentile)

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  • Snyk IDSNYK-ALPINE316-PY3DJANGO-2845663
  • published2 Aug 2021
  • disclosed2 Aug 2019

Introduced: 2 Aug 2019

CVE-2019-14232  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 py3-django to version 1.11.23-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-django package and not the py3-django package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

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.