CVE-2024-1135 Affecting python311-gunicorn package, versions <20.1.0-150400.12.6.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
3% (86th percentile)

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  • Snyk IDSNYK-SLES154-PYTHON311GUNICORN-6689628
  • published29 Apr 2024
  • disclosed26 Apr 2024

Introduced: 26 Apr 2024

CVE-2024-1135  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 python311-gunicorn to version 20.1.0-150400.12.6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311-gunicorn package and not the python311-gunicorn package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.

CVSS Base Scores

version 3.1