| Package | Affected versions | Patched versions |
|---|---|---|
| heimdal | = 0.4e | |
| heimdal | = 0.4e |
Kerberos 5 su (k5su) in FreeBSD 4.4 and earlier relies on the getlogin system call to determine if the user running k5su is root, which could allow a root-initiated process to regain its privileges after it has dropped them.
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