HTTP Request Smuggling Affecting python3-docutils package, versions <0:0.14-12.module+el8.4.0+597+ddf0ddea


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.22% (60th percentile)

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  • Snyk IDSNYK-ROCKY8-PYTHON3DOCUTILS-3201987
  • published5 Jan 2023
  • disclosed15 Feb 2021

Introduced: 15 Feb 2021

CVE-2021-23336  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 python3-docutils to version 0:0.14-12.module+el8.4.0+597+ddf0ddea or higher.
This issue was patched in RLSA-2021:4151.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-docutils package and not the python3-docutils package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.

References

CVSS Scores

version 3.1