GCVE-110-MAGEIA-2015-485

Updated proftpd packages fix security vulnerability: Part of the SFTP handshake involves "extensions", which are key/value pairs, comprised of strings. In SSH, strings are encoded for network transport as a 32-bit length, followed by the bytes. The mod_sftp module currently places no bounds/length limitations when reading these SFTP extension key/value data from the network. A malicious attacker might attempt to encode large values, and allocate more memory than is necessary, causing excessive resource usage or the FTP daemon to crash (proftpd#4210). This update also includes a fix for a crash in mod_lang (proftpd#4206).