A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssh | Openbsd | 4.3 (including) | 4.3 (including) |
| Openssh | Openbsd | 4.8 (including) | 4.8 (including) |
| Red Hat Enterprise Linux 5 | RedHat | openssh-0:4.3p2-36.el5_4.2 | * |