cons.saver in Midnight Commander (mc) 4.5.42 and earlier does not properly verify if an output file descriptor is a TTY, which allows local users to corrupt files by creating a symbolic link to the target file, calling mc, and specifying that link as a TTY argument.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5519
http://www.linux-mandrake.com/en/security/MDKSA-2000-078.php3
http://www.debian.org/security/2000/20001125
http://archives.neohapsis.com/archives/bugtraq/2000-11/0192.html