The line printer daemon (lpd) in the lpr package in multiple Linux operating systems allows local users to gain root privileges by causing sendmail to execute with arbitrary command line arguments, as demonstrated using the -C option to specify a configuration file.

The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.

Versions of rpcbind including Linux, IRIX, and Wietse Venema's rpcbind allow a remote attacker to insert and delete entries by spoofing a source address.

The printers program in IRIX has a buffer overflow that gives root access to local users.

The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID.

root privileges via buffer overflow in df command on SGI IRIX systems.

root privileges via buffer overflow in pset command on SGI IRIX systems.

root privileges via buffer overflow in eject command on SGI IRIX systems.

root privileges via buffer overflow in login/scheme command on SGI IRIX systems.

root privileges via buffer overflow in ordist command on SGI IRIX systems.

root privileges via buffer overflow in xlock command on SGI IRIX systems.

Denial of service in RPC portmapper allows attackers to register or unregister RPC services or spoof RPC services using a spoofed source IP address such as 127.0.0.1.

Command execution in Sun systems via buffer overflow in the at program.

getcwd() file descriptor leak in FTP.

Race condition in signal handling routine in ftpd, allowing read/write arbitrary files.

inpview in InPerson on IRIX 5.3 through IRIX 6.5.10 trusts the PATH environmental variable to find and execute the ttsession program, which allows local users to obtain root access by modifying the PATH to point to a Trojan horse ttsession program.

Bash treats any character with a value of 255 as a command separator.

Guessable magic cookies in X Windows allows remote attackers to execute commands, e.g. through xterm.