telnetd in FreeBSD 4.2 and earlier, and possibly other operating systems, allows remote attackers to cause a denial of service by specifying an arbitrary large file in the TERMCAP environmental variable, which consumes resources as the server processes the file.
| Software | From | Fixed in |
|---|---|---|
| freebsd / freebsd | 3.0 | 3.0.x |
| freebsd / freebsd | 3.5.1-stable | 3.5.1-stable.x |
| freebsd / freebsd | 4.0 | 4.0.x |
| freebsd / freebsd | 4.1 | 4.1.x |
| freebsd / freebsd | 4.1.1 | 4.1.1.x |