Certain third-party packages for CVSup 16.1h, such as SuSE Linux, contain untrusted paths in the ELF RPATH fields of certain executables, which could allow local users to execute arbitrary code by causing cvsup to link against malicious libraries that are created in world-writable directories such as /usr/src/packages.

sup 1.8 and earlier does not properly create temporary files, which allows local users to overwrite arbitrary files.

cvsupd.sh in CVSup 1.2 allows local users to overwrite arbitrary files and gain privileges via a symlink attack on /var/tmp/cvsupd.out.