The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information. This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash).
| Software | From | Fixed in |
|---|---|---|
| debian / courier-authlib | - | 0.71.1-2 |
| debian / debian_linux | 9.0 | 9.0.x |