A flaw was found in CUPS, a widely used printing service on Linux and UNIX-like systems. The issue arises when authentication is configured to use a method other than Basic, but the attacker sends an HTTP request with a Basic authentication header. Due to improper validation in the cupsdAuthorize() function, the password is not checked. This vulnerability allows attackers to bypass authentication entirely, resulting in unauthorized access to administrative functions and system configuration.

OpenPrinting CUPS is vulnerable to a denial of service, caused by a NULL pointer dereferences flaw due to an unsafe deserialization and validation of printer attributes.