retroclient.exe in EMC Dantz Retrospect Backup Client 7.5.116 allows remote attackers to cause a denial of service (daemon crash) via a series of long packets containing 0x00 characters to TCP port 497 that trigger memory corruption, probably involving an English product version on a Chinese OS version.

More... (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-3290)