The sigalgs implementation in t1_lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by using an invalid signature_algorithms extension in the ClientHello message during a renegotiation.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 1.0.2 (including) | 1.0.2 (including) |
| Openssl | Openssl | 1.0.2-beta1 (including) | 1.0.2-beta1 (including) |
| Openssl | Openssl | 1.0.2-beta2 (including) | 1.0.2-beta2 (including) |
| Openssl | Openssl | 1.0.2-beta3 (including) | 1.0.2-beta3 (including) |