CVE-2019-20800

CRITICAL

Cherokee <= 1.2.104 - Out-of-bounds Write via Request Headers

Title source: llm
STIX 2.1

Description

In Cherokee through 1.2.104, remote attackers can trigger an out-of-bounds write in cherokee_handler_cgi_add_env_pair in handler_cgi.c by sending many request headers, as demonstrated by a GET request with many "Host: 127.0.0.1" headers.

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://logicaltrust.net/blog/2019/11/cherokee.html
Exploit, Third Party Advisory x_refsource_misc
https://github.com/cherokee/webserver/issues/1224
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202012-09

Scores

CVSS v3 9.8
EPSS 0.0215
EPSS Percentile 80.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
cherokee-project/cherokee < 1.2.104
Published May 18, 2020
Tracked Since Feb 18, 2026