ISC Kea CVE-2019-6472 Denial of Service Vulnerability

Description

ISC Kea is prone to a remote denial-of-service vulnerability. An attacker can exploit this issue to cause a denial-of-service condition. Kea 1.4.0 through 1.5.0, 1.6.0-beta1, and 1.6.0-beta2 are vulnerable.

Technologies Affected

• ISC Kea 1.4.0
• ISC Kea 1.5.0
• ISC Kea 1.6.0-beta1
• ISC Kea 1.6.0-beta2

Recommendations

Block external access at the network boundary, unless external parties require service.
Allow only trusted hosts and networks to connect to computers running the affected software. This will limit the potential for remote attackers to exploit this issue.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to malformed requests and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.