Internet Systems Consortium (ISC) has released security updates to address a vulnerability in versions of ISC Dynamic Host Configuration Protocol (DHCP) server. Exploitation of this vulnerability may allow a remote attacker to cause a denial-of-service condition.
Updated versions of ISC DHCP (4.1-ESV-R13 and 4.3.4) will be available soon, and current workarounds are described in ISC Knowledge Base Article AA-01354. US-CERT encourages users and administrators to review this article and apply the necessary updates when available.