OpenSSL has issued a security update for the CMS and S/MIME Bleichenbacher attack (CVE-2012-0884). "SSL/TLS applications are *NOT* affected by this problem since the SSL/TLS code does not use the PKCS#7 or CMS decryption code." [1]

OpenSSL 0.9.8u and OpenSSL 1.0.0h are available for download here.

[1] http://www.openssl.org/news/secadv_20120312.txt
[2] http://www.openssl.org/source/

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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu