Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a Bleichenbacher attack on PKCS#1 version 1.5.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssh | Openbsd | 1.2.3 (including) | 1.2.3 (including) |
| Openssh | Openbsd | 2.1 (including) | 2.1 (including) |
| Openssh | Openbsd | 2.1.1 (including) | 2.1.1 (including) |
| Ssh | Ssh | * | 1.2.31 (including) |