K15342 : OpenSSL vulnerability CVE-2014-3470

Security Advisory Description

The ssl3_send_client_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h, when an anonymous ECDH cipher suite is used, allows remote attackers to cause a denial of service (NULL pointer dereference and client crash) by triggering a NULL certificate value. (CVE-2014-3470)

Impact

An attacker may be able to exploit OpenSSL Transport Layer Security (TLS) clients that enable anonymous ECDH ciphersuites. As a result, these clients are subjected to a denial-of-service (DoS) attack. Anonymous ECDH ciphersuites are, by default, not enabled on BIG-IP system OpenSSL TLS client components.