Alvaro Lopez Ortega · Cherokee · CVE-2020-12845
**Name of the Vulnerable Software and Affected Versions**
Cherokee versions 0.4.27 through 1.2.104
**Description**
The issue is a denial of service caused by NULL pointer dereferences. A remote unauthenticated attacker can crash the server by sending an HTTP request to protected resources using a malformed `Authorization` header. This header is mishandled during a `cherokee buffer add` call within `cherokee validator parse basic` or `cherokee validator parse digest` functions.
**Recommendations**
For Cherokee versions 0.4.27 through 1.2.104, as a temporary workaround, consider restricting access to protected resources to minimize the risk of exploitation. Avoid using malformed `Authorization` headers in HTTP requests until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.