MGASA-2017-0066 Updated libevent packages fix security vulnerability

The DNS code of Libevent contains an OOB read which can trigger a crash CVE-2016-10197 The libevent evutilparsesockaddrport contains a buffer overflow which can cause a segmentation fault CVE-2016-10196 The nameparse function in libevent's DNS code is vulnerable to a buffer overread CVE-2016-1019...