CVE-2018-1000164

HIGH

gunicorn < 19.5.0 - HTTP Header Injection via CRLF in process_headers

Title source: llm
STIX 2.1

Description

gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. This vulnerability appears to have been fixed in 19.5.0.

References (5)

Core 5
Core References
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/04/msg00022.html
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/benoitc/gunicorn/issues/1227
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4186
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4022-1/

Scores

CVSS v3 7.5
EPSS 0.0243
EPSS Percentile 82.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-93
Status published
Products (4)
debian/debian_linux 7.0
debian/debian_linux 8.0
gunicorn/gunicorn 19.4.5
pypi/gunicorn 0 - 19.5.0PyPI
Published Apr 18, 2018
Tracked Since Feb 18, 2026