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LIN5-21655 : Security Advisory - ntp - CVE-2016-1549

Created: Jun 13, 2016    Updated: May 29, 2018
Resolved Date: Jun 16, 2016
Found In Version: 5.0.1.35
Fix Version: 5.0.1.36
Severity: Standard
Applicable for: Wind River Linux 5
Component/s: Userspace

Description

ntpd can be vulnerable to Sybil attacks. If a system is set up to use a trustedkey and if one is not using the feature introduced in ntp-4.2.8p6 allowing an optional 4th field in the ntp.keys file to specify which IPs can serve time, a malicious authenticated peer -- i.e. one where the attacker knows the private symmetric key -- can create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1549 

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