Secunia: Description: Some vulnerabilities have been reported in ZoneMinder, which potentially can be exploited by malicious users to compromise a vulnerable system. The vulnerabilities are caused due to unspecified errors and can be exploited to execute arbitrary code. Solution: Update to version 1.23.3. Original Advisory: http://www.zoneminder.com/wiki/index.php/Change_History#Release_1.23.3
http://www.awe.com/mark/blog/200804272230.html (thanks to thoger)
zoneminder-1.23.3 is in the tree. All versions were marked unstable and I'm going to remove the older versions once I got feedback that the newer ebuild works fine.
thanks, closing then.