CVE-2016-9042

2016-12-31T00:00:00
ID UB:CVE-2016-9042
Type ubuntucve
Reporter ubuntu.com
Modified 2016-12-31T00:00:00

Description

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

Bugs

  • <http://support.ntp.org/bin/view/Main/NtpBug3361>

Notes

Author| Note
---|---
mdeslaur | ntp-4.2.8p9 (21 Nov 2016), up to but not including ntp-4.2.8p10 introduced in patch for CVE-2016-7431