The pam_console PAM module in Linux systems performs a chown on various devices upon a user login, but an open file descriptor for those devices can be maintained after the user logs out, which allows that user to sniff activity on these devices when subsequent users log in.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux | Redhat | 6.0 (including) | 6.0 (including) |
| Linux | Redhat | 6.1 (including) | 6.1 (including) |
| Linux | Redhat | 6.2 (including) | 6.2 (including) |