The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k allows remote SSL servers to conduct ECDHE-to-ECDH downgrade attacks and trigger a loss of forward secrecy by omitting the ServerKeyExchange message.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < 22938534c611136f35e2ca545bb668073ca5ef49 |