Red Hat Security Advisory 2013-0192-01 - An attack technique against the W3C XML Encryption Standard when block ciphers were used in CBC mode could allow a remote attacker to conduct chosen-ciphertext attacks, leading to the recovery of the entire plain text of a particular cryptogram. JBoss Web Services leaked side-channel data when distributing symmetric keys, allowing a remote attacker to recover the entire plain text form of a symmetric key. Spring framework could possibly evaluate Expression Language expressions twice, allowing a remote attacker to execute arbitrary code in the context of the application server, or to obtain sensitive information from the server. Manual action is required to apply this fix.
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