Local users can change the permissions of any file.
Affected sites should change permissions or install this fix as soon as possible. Critical Information about IRIX Permissions Tool CIAC has received information about a vulnerability in the Silicon Graphics IRIX operating system. Silicon Graphics provides this information freely to the SGI community for its consideration, interpretation and implementation. Silicon Graphics recommends that this information be acted upon as soon as possible. Silicon Graphics will not be liable for any consequential damages arising from the use of, or failure to use or use properly, any of the instructions or information in this Security Advisory.