The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a protocol downgrade issue.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 1.0.0 (including) | 1.0.0 (including) |
| Openssl | Openssl | 1.0.0-beta1 (including) | 1.0.0-beta1 (including) |
| Openssl | Openssl | 1.0.0-beta2 (including) | 1.0.0-beta2 (including) |
| Openssl | Openssl | 1.0.0-beta3 (including) | 1.0.0-beta3 (including) |
| Openssl | Openssl | 1.0.0-beta4 (including) | 1.0.0-beta4 (including) |
| Openssl | Openssl | 1.0.0-beta5 (including) | 1.0.0-beta5 (including) |
| Openssl | Openssl | 1.0.0a (including) | 1.0.0a (including) |
| Openssl | Openssl | 1.0.0b (including) | 1.0.0b (including) |
| Openssl | Openssl | 1.0.0c (including) | 1.0.0c (including) |
| Openssl | Openssl | 1.0.0d (including) | 1.0.0d (including) |
| Openssl | Openssl | 1.0.0e (including) | 1.0.0e (including) |
| Openssl | Openssl | 1.0.0f (including) | 1.0.0f (including) |
| Openssl | Openssl | 1.0.0g (including) | 1.0.0g (including) |
| Openssl | Openssl | 1.0.0h (including) | 1.0.0h (including) |
| Openssl | Openssl | 1.0.0i (including) | 1.0.0i (including) |
| Openssl | Openssl | 1.0.0j (including) | 1.0.0j (including) |
| Openssl | Openssl | 1.0.0k (including) | 1.0.0k (including) |
| Openssl | Openssl | 1.0.0l (including) | 1.0.0l (including) |
| Openssl | Openssl | 1.0.0m (including) | 1.0.0m (including) |
| Openssl | Openssl | 1.0.1 (including) | 1.0.1 (including) |
| Openssl | Openssl | 1.0.1-beta1 (including) | 1.0.1-beta1 (including) |
| Openssl | Openssl | 1.0.1-beta2 (including) | 1.0.1-beta2 (including) |
| Openssl | Openssl | 1.0.1-beta3 (including) | 1.0.1-beta3 (including) |
| Openssl | Openssl | 1.0.1a (including) | 1.0.1a (including) |
| Openssl | Openssl | 1.0.1b (including) | 1.0.1b (including) |
| Openssl | Openssl | 1.0.1c (including) | 1.0.1c (including) |
| Openssl | Openssl | 1.0.1d (including) | 1.0.1d (including) |
| Openssl | Openssl | 1.0.1e (including) | 1.0.1e (including) |
| Openssl | Openssl | 1.0.1f (including) | 1.0.1f (including) |
| Openssl | Openssl | 1.0.1g (including) | 1.0.1g (including) |
| Openssl | Openssl | 1.0.1h (including) | 1.0.1h (including) |