Apple Mac OS X "ptrace()" DoS Vulnerability
Secunia Advisory: SA37238
Release Date: 2009-11-06
Critical: Not critical
Impact: DoS
Where: Local system
Vendor Solution Status: Unpatched
A vulnerability has been reported in Mac OS X, which can be exploited by malicious, local users to cause a DoS (Denial of Service). The vulnerability is caused due to a race condition within the "ptrace()" implementation, which can be exploited to cause a kernel panic.
The vulnerability is reported in version 10.5.6, 10.5.7, and 10.6.1. Other versions may also be affected.
Solution: Restrict access to trusted users only.
http://secunia.com/advisories/37238/