suidperl (aka sperl) does not properly cleanse the escape sequence "~!" before calling /bin/mail to send an error report, which allows local users to gain privileges by setting the "interactive" environmental variable and calling suidperl with a filename that contains the escape sequence.
| Software | From | Fixed in |
|---|---|---|
| larry_wall / perl | 5.6 | 5.6.x |
| larry_wall / perl | 5.5 | 5.5.x |
| larry_wall / perl | 5.5.3 | 5.5.3.x |
| larry_wall / perl | 5.4.5 | 5.4.5.x |