This update for ntp fixes the following issues: Security issues fixed: - CVE-2016-1549: Significant additional protections against CVE-2016-1549 that was fixed in ntp-4.2.8p7 . - CVE-2018-7170: Ephemeral association time spoofing additional protection . - CVE-2018-7182: Buffer read overrun leads information leak in ctl_getitem . - CVE-2018-7183: decodearr can write beyond its buffer limit . - CVE-2018-7184: Interleaved symmetric mode cannot recover from bad state . - CVE-2018-7185: Unauthenticated packet can reset authenticated interleaved association . Bug fixes: - bsc#1077445: Don"t use libevent"s cached time stamps in sntp. - Disable CMAC in ntp when building against a version of OpenSSL that doesn"t support it.