CVE-2011-4354

crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used
in stunnel and other products, in certain circumstances involving ECDH or
ECDHE cipher suites, uses an incorrect modular reduction algorithm in its
implementation of the P-256 and P-384 NIST elliptic curves, which allows
remote attackers to obtain the private key of a TLS server via multiple
handshake attempts.