CRLF Injection Affecting python-pygments package, versions <0:2.2.0-20.module+el8.3.0+120+426d8baf


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.33% (72nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about CRLF Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ROCKY8-PYTHONPYGMENTS-3304926
  • published3 Feb 2023
  • disclosed13 Mar 2019

Introduced: 13 Mar 2019

CVE-2019-9740  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 python-pygments to version 0:2.2.0-20.module+el8.3.0+120+426d8baf or higher.
This issue was patched in RLSA-2019:3335.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-pygments package and not the python-pygments package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the query string after a ? character) followed by an HTTP header or a Redis command. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

References

CVSS Scores

version 3.1