CVE-2017-3144

Failure to properly clean up closed OMAPI connections can exhaust available sockets

Published Jan 16, 2019 CVSS 3.1 · 7.5 High EPSS 72.7% KEV · Not listed
Description
A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond their end-of-life (EOL). Releases prior to 4.1.0 have not been tested.

Remediation

Vendor Workaround

The recommended remedy is to disallow access to the OMAPI control port from unauthorized clients (in accordance with best practices for server operation).

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-4133-1 isc-dhcp security update
Ubuntu USN Ubuntu USN USN-3586-1 DHCP vulnerabilities
History

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