CVE-2019-20800 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/cherokee/webserver/issues/1224 https://logicaltrust.net/blog/2019/11/cherokee.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8