Apple · Cups · CVE-2004-0558
**Name of the Vulnerable Software and Affected Versions**
CUPS versions prior to 1.1.21
**Description**
The issue concerns the Internet Printing Protocol (IPP) implementation, which allows remote attackers to cause a denial of service, resulting in the service hanging. This can be achieved by sending a certain UDP packet to the IPP port.
**Recommendations**
For versions prior to 1.1.21, update to version 1.1.21 or later to resolve the issue.