Buffer overflow in the man program in Linux allows local users to gain privileges via the MANPAGER environmental variable.

The Red Hat Linux su program does not log failed password guesses if the su process is killed before it times out, which allows local attackers to conduct brute force password guessing.

Buffer overflow in run-time linkers (1) ld.so or (2) ld-linux.so for Linux systems allows local users to gain privileges by calling a setuid program with a long program name (argv[0]) and forcing ld.so/ld-linux.so to report an error.

ucbmail allows remote attackers to execute commands via shell metacharacters that are passed to it from INN.

Buffer overflow in Vixie cron allows local users to gain root access via a long MAILTO environment variable in a crontab file.

Vixie Cron on Linux systems allows local users to set parameters of sendmail commands via the MAILTO environmental variable.

Buffer overflow in Dosemu Slang library in Linux.

Local users can start Sendmail in daemon mode and gain root privileges.

Buffer overflow in NLS (Natural Language Service).

Buffer overflow in suidperl (sperl), Perl 4.x and 5.x.

Dirk Mueller reported an off by one buffer overflow flaw in the way QT parses certain unicode strings.

To quote Dirk:

Ive found a off-by-one buffer overflow in QUtf8Decoder::toUnicode(). It is not exploitable with Qt 4.x or above because there is an additional QChar(0) being allocated in QString, however it is still a bug there, as the array returned by utf16() etc is no longer terminated properly.