CVE-2019-20800

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.26% Top 25%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://logicaltrust.net/blog/2019/11/cherokee.html third party advisory exploit
https://github.com/cherokee/webserver/issues/1224 third party advisory exploit
https://security.gentoo.org/glsa/202012-09 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-20800?
CVE-2019-20800 has been scored as a critical severity vulnerability.
How to fix CVE-2019-20800?
To fix CVE-2019-20800, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20800 being actively exploited in the wild?
It is possible that CVE-2019-20800 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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