Cherokee 0.4.27 to 1.2.104 is affected by a denial of service due to a NULL pointer dereferences. A remote unauthenticated attacker can crash the server by sending an HTTP request to protected resources using a malformed Authorization header that is mishandled during a cherokee_buffer_add call within cherokee_validator_parse_basic or cherokee_validator_parse_digest.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-12845
• cherokee/webserver#1242
• https://github.com/cherokee/webserver/releases
• https://security.gentoo.org/glsa/202012-09
• http://cherokee-project.com/downloads.html