021760c273
Changes between 0.9.8t and 0.9.8u [12 Mar 2012] *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness in CMS and PKCS7 code. When RSA decryption fails use a random key for content decryption and always return the same error. Note: this attack needs on average 2^20 messages so it only affects automated senders. The old behaviour can be reenabled in the CMS code by setting the CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where an MMA defence is not necessary. Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this issue. (CVE-2012-0884) [Steve Henson] *) Fix CVE-2011-4619: make sure we really are receiving a client hello before rejecting multiple SGC restarts. Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. [Steve Henson] |
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