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NTP 'received' Timestamp Denial of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
General
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
6 years ago
Modified
Modified
4 years ago
Summary
The host is running NTP and is prone to a denial of service vulnerability.
Insight
Insight
The flaw exists because ntpd in ntp drops bad packets before updating the 'received' timestamp.
Affected Software
Affected Software
NTP versions 4.2.8p4 before 4.2.8p11
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to NTP version 4.2.8p11 or later.