A vulnerability in the Apple Mac OS X AFP server may allow an attacker to cause a denial-of-service condition on an affected system.
The AFP (Apple Filing Protocol) service allows Apple Mac OS clients to access files remotely from a server. Apple's Mac OS X AFP server contains an unchecked error condition. When file sharing is enabled, a remote attacker can exploit this vulnerability by sending a specially crafted invalid AFP request. This crafted AFP request may cause the service to crash, resulting in a denial-of-service condition. Apple states that any Mac OS X system with AFP server enabled is vulnerable; however, AFP server is not enabled by default on Apple Mac OS X.
When file sharing is enabled, a maliciously crafted AFP request may cause the AFP server to crash, resulting in a denial-of-service condition.
Apply an update
Apple has addressed this issue in Security Update 2006-004.
Disable file sharing if it is not required. File sharing can be disabled in the "Sharing" settings of system preferences.
Vendor| Status| Date Notified| Date Updated
Apple Computer, Inc.| | 02 Aug 2006| 04 Aug 2006
If you are a vendor and your product is affected, let us know.
Group | Score | Vector
Base | N/A | N/A
Temporal | N/A | N/A
Environmental | N/A | N/A
Thanks to Apple Product Security for reporting this vulnerability.
This document was written by Katie Washok.