The e_hostname function in commands.c in BitchX 1.1a allows local users to overwrite arbitrary files via a symlink attack on temporary files when using the (1) HOSTNAME or (2) IRCHOST command.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Bitchx | Bitchx | 1.1a (including) | 1.1a (including) |
| Ircii-pana | Ubuntu | dapper | * |
| Ircii-pana | Ubuntu | edgy | * |
| Ircii-pana | Ubuntu | feisty | * |
| Ircii-pana | Ubuntu | gutsy | * |