Buffer overflow in rpc.yppasswdd (yppasswd server) in AIX allows attackers to gain unauthorized access via a long string. NOTE: due to lack of details in the vendor advisory, it is not clear if this is the same issue as CVE-2001-0779.
lsfs in AIX 4.x allows a local user to gain additional privileges by creating Trojan horse programs named (1) grep or (2) lslv in a certain directory that is under the user's control, which cause lsfs to access the programs in that directory.
AIX sysback before 4.2.1.13 uses a relative path to find and execute the hostname program, which allows local users to gain privileges by modifying the path to point to a malicious hostname program.