Correction:
4) There are arbitrary file data append issues in getShell and getCommand in conjuction with specific settings in the malloc debug system.Both getShell and getCommand are setuid root.
Issue 4 affects AIX versions 5.3, 5.2 and 5.1.
Issue 4 affects only AIX 5.3 and not 5.2 and 5.1 as was indicated. Apologies!
Cheers, David