Carson Gaspar wrote: > Does anyone know what the pt_chmod hole is? The same suid program exists in > Solaris 2.x, and knowing Sun's track record... By my testing, exactly the same bug exists on Solaris 2.3/SPARC; however, it does not cause a security hole there. The security hole is caused by how the SCO execution environment treats NULL dereferences. The same bug probably exists in the pt_chmod source on most System V systems; whether it causes a security problem depends on how the OS treats NULL dereferences. Full disclosure has been sent to CERT for dissemination to other OS vendors. I am not in a position to publically disclose full details at this time; I also think that to do so would be rude to other OS vendors who have not had a chance to issue their own fixes. Your pt_chmod is safe if it coredumps when run as `pt_chmod < /etc/termcap`. If not, it might or might not be safe. Ask your OS vendor, "trace" or "truss". I'm sorry that I can't say more. >Bela<