This indicates an attack attempt against a buffer-overflow vulnerability in IBM Tivoli Storage Manager Client.
The vulnerability is caused by an error when the vulnerable software handles a malicious request. It allows a remote attacker to execute arbitrary code via sending a crafted request.
IBM Tivoli Storage Manager (TSM) client 126.96.36.199 through 188.8.131.52, 184.108.40.206 through 220.127.116.11, 18.104.22.168 through 22.214.171.124, and 126.96.36.199 through 188.8.131.52, and the TSM Express client 184.108.40.206 through 220.127.116.11
System Compromise: Remote attackers can gain control of vulnerable systems.
Upgrade to the latest version.
TSM 5.5 all platforms:
Update to version 5.5.2.
TSM 5.4 all platforms:
Update to version 18.104.22.168.
Update to version 22.214.171.124
Update to 126.96.36.199 (AIX), 188.8.131.52 (Solaris SPARC), 184.108.40.206 (HP PA-RISC), 220.127.116.11 (Windows x32), or 18.104.22.168 (Tru64 UNIX).
Update to version 22.214.171.124.
TSM 5.5 SSL client update packages:
Update to 5.5.2.