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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTMycGMteHBoeC1xNGY2

Gunicorn contains Improper Neutralization of CRLF sequences in HTTP headers

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.

Permalink: https://github.com/advisories/GHSA-32pc-xphx-q4f6
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTMycGMteHBoeC1xNGY2
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 6 years ago
Updated: 3 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Percentage: 0.00491
EPSS Percentile: 0.76502

Identifiers: GHSA-32pc-xphx-q4f6, CVE-2018-1000164
References:

• https://nvd.nist.gov/vuln/detail/CVE-2018-1000164
• https://github.com/benoitc/gunicorn/issues/1227
• https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5
• https://github.com/advisories/GHSA-32pc-xphx-q4f6
• https://lists.debian.org/debian-lts-announce/2018/04/msg00022.html
• https://www.debian.org/security/2018/dsa-4186
• https://github.com/pypa/advisory-database/tree/main/vulns/gunicorn/PYSEC-2018-55.yaml
• https://usn.ubuntu.com/4022-1

Repository: https://github.com/benoitc/gunicorn
Blast Radius: 40.8

Affected Packages