The Change Permissions function in the Sophster suite before 0.9.6 28 May 2004 (aka 0.9.6-r5), possibly including Sophster, FreeSophster, and FreeSophsterPAM, removes the (1) setuid, (2) setgid, and (3) sticky bits when changing a file, which might allow attackers to gain privileges or conduct other unauthorized activities.
