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MIT Kerberos 5 kpasswd UDP Packet Denial Of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
Denial of Service
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
10 years ago
Modified
Modified
5 years ago
Summary
This host is running MIT Kerberos and is prone to denial of service vulnerability.
Insight
Insight
The flaw is caused due to the kpasswd application does not properly validate UDP packets before sending responses and can be exploited to exhaust CPU and network resources via the UDP 'ping-pong' attack.
Affected Software
Affected Software
MIT Kerberos 5 before 1.11.3
Solution
Solution
Upgrade to MIT Kerberos 5 version 1.11.3 or later.