Red Hat: CVE-2025-58364: cups: Null Pointer Dereference in CUPS ipp_read_io() Leading to Remote DoS (Multiple Advisories)

A flaw was found in the CUPS printing system’s ipp_read_io() function, which handles Internet Printing Protocol (IPP) requests. When processing specially crafted printer attribute responses, improper validation can cause a null pointer dereference. This leads to a crash in libcups, potentially disrupting printing services. Since CUPS is widely deployed on Linux systems for printer discovery and management, this issue can cause denial-of-service (DoS) across multiple machines on a local network.