The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a "Client: Diffie-Hellman Key Exchange Init" packet.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < a4639380bbe66172df329f8b54aa7d2e943f0f64 |