Intrusion Prevention

Ntpd.Mrulist.Query.Packet.Handling.DoS

Description

This indicates an attack attempt to exploit a Denial of Service Vulnerability in NTP Daemon
The vulnerability is due to an improper validation when a vulnerable application parses a crafted mrulist query packet. A remote attacker could exploit this to crash vulnerable systems, via a crafted request.

Affected Products

ntp.org NTP prior to 4.2.8p9

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Refer to the vendor's web site for suggested workaround.
http://support.ntp.org/bin/view/Main/SecurityNotice#November_2016_ntp_4_2_8p9_NTP_Se

CVE References

CVE-2016-7434