This update for ntp to 4.2.8p7 fixes the following issues:

* CVE-2016-1547, bsc#977459:
Validate crypto-NAKs, AKA: CRYPTO-NAK DoS.
* CVE-2016-1548, bsc#977461: Interleave-pivot
* CVE-2016-1549, bsc#977451:
Sybil vulnerability: ephemeral association attack.
* CVE-2016-1550, bsc#977464: Improve NTP security against buffer
comparison timing attacks.
* CVE-2016-1551, bsc#977450:
Refclock impersonation vulnerability
* CVE-2016-2516, bsc#977452: Duplicate IPs on unconfig
directives will cause an assertion botch in ntpd.
* CVE-2016-2517, bsc#977455: remote configuration trustedkey/
requestkey/controlkey values are not properly validated.
* CVE-2016-2518, bsc#977457: Crafted addpeer with hmode > 7
causes array wraparound with MATCH_ASSOC.
* CVE-2016-2519, bsc#977458: ctl_getitem() return value not
always checked.
* This update also improves the fixes for:
CVE-2015-7704, CVE-2015-7705, CVE-2015-7974

Bugs fixed:
- Restrict the parser in the startup script to the first
occurrance of "keys" and "controlkey" in ntp.conf (bsc#957226).

This update was imported from the SUSE:SLE-12-SP1:Update update project.