| Mozilla Network Security Services (NSS) before 3.20.2, as used in
Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does
not reject MD5 signatures in Server Key Exchange messages in TLS 1.2
Handshake Protocol traffic, which makes it easier for
man-in-the-middle attackers to spoof servers by triggering a
collision.
|