Ubuntu Security Notice USN-170-1 - Serge Mister and Robert Zuccherato discovered a weakness of the symmetrical encryption algorithm of gnupg. When decrypting a message, gnupg uses a feature called 'quick scan'; this can quickly check whether the key that is used for decryption is (probably) the right one, so that wrong keys can be determined quickly without decrypting the whole message.
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Gentoo Linux Security Advisory GLSA 200503-29 - A flaw has been identified in an integrity checking mechanism of the OpenPGP protocol. Versions less than 1.4.1 are affected.
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