CVE-2024-1135 Affecting python3-gunicorn package, versions <19.7.1-150000.3.7.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-SLES156-PYTHON3GUNICORN-7676337
  • published13 Aug 2024
  • disclosed12 Aug 2024

Introduced: 12 Aug 2024

CVE-2024-1135  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 python3-gunicorn to version 19.7.1-150000.3.7.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-gunicorn package and not the python3-gunicorn package as distributed by SLES. See How to fix? for SLES:15.6 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 Scores

version 3.1