Mandriva Linux Security Advisory 2014-012 - The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic. The updated packages have been upgraded to the 3.15.4 version which is not vulnerable to this issue.
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