ghostscript before 5.10-16 uses an empty LD_RUN_PATH environmental variable to find libraries in the current directory, which could allow l…

ghostscript before 5.10-16 uses an empty LD_RUN_PATH environmental variable to find libraries in the current directory, which could allow local users to execute commands as other users by placing a Trojan horse library into a directory from which another user executes ghostscript.