Source: gunicorn Version: 20.1.0-6 Severity: important Tags: security upstream X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for gunicorn. CVE-2024-1135[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2024-1135 https://www.cve.org/CVERecord?id=CVE-2024-1135 [1] https://huntr.com/bounties/22158e34-cfd5-41ad-97e0-a780773d96c1 [2] https://github.com/benoitc/gunicorn/commit/ac29c9b0a758d21f1e0fb3b3457239e523fa9f1d Please adjust the affected versions in the BTS as needed. Regards, Salvatore