The Mac OS X WebDAV kernel extension is vulnerable to a denial of service issue that allows a local unprivileged user to trigger a kernel panic due to a memory overallocation.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/92180/macosxwebdav-dos.txt
Source: https://packetstormsecurity.com/files/92180/Mac-OS-X-WebDAV-Kernel-Extension-Denial-Of-Service.html