Unspecified vulnerability in the ZFS filesystem in Sun Solaris 10, and OpenSolaris snv_100 through snv_117, allows local users to bypass intended limitations of the file_chown_self privilege via certain uses of the chown system call.
http://www.vupen.com/english/advisories/2009/2917
http://www.securityfocus.com/bid/36702
http://sunsolve.sun.com/search/document.do?assetkey=1-66-265908-1
http://sunsolve.sun.com/search/document.do?assetkey=1-21-141444-09-1