Design/Logic Flaw

NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression...

CVE-2016-7431

CVE-2016-7431 is a documented zero-origin-timestamp bypass in ntpd. A regression after fix for CVE-2015-8138 allowed some zero-origin timestamps to bypass origin timestamp validation. Affected in ntpd upstream releases prior to 4.2.8p9; Cloud Foundry and Arch Linux advisories describe persistent ...