IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the smbcd daemon to cause a denial of service.
IBM AIX 7.1
IBM AIX 7.2
IBM VIOS 3.1
IBM AIX 7.3
Refer to IBM Security Bulletin for patch, upgrade, or suggested workaround information.