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NTP 'protocol engine' 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 exist due to a bug that was inadvertently introduced into the 'protocol engine' that allows a non-authenticated zero-origin (reset) packet to reset an authenticated interleaved peer association.
Affected Software
Affected Software
ntp versions 4.2.6 through 4.2.8p10 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.