Mageia: Security Advisory (MGASA-2014-0080)

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MGASA-2014-0080 Updated denyhosts package fixes security vulnerability

Helmut Grohne discovered that denyhosts, a tool preventing SSH brute-force attacks, could be used to perform remote denial of service against the SSH daemon. Incorrectly specified regular expressions used to detect brute force attacks in authentication logs could be exploited by a malicious user ...