MEDIUM
GHSA-g7v2-2qxx-wjrw
Symlink Attack in Libcontainer and Docker Engine
Quick fix
GHSA-g7v2-2qxx-wjrw — github.com/docker/docker: upgrade to the fixed version with the command below.
go get github.com/docker/docker@v1.6.1Details
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.
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2015-3627[ADVISORY]
- https://github.com/docker/docker/commit/d5ebb60bddbabea0439213501f4f6ed494b23cba[WEB]
- https://groups.google.com/forum/#!searchin/docker-user/1.6.1/docker-user/47GZrihtr-4/nwgeOOFLexIJ[WEB]
- https://groups.google.com/forum/#%21searchin/docker-user/1.6.1/docker-user/47GZrihtr-4/nwgeOOFLexIJ[WEB]
- https://lists.opensuse.org/opensuse-updates/2015-05/msg00023.html[WEB]
- https://packetstormsecurity.com/files/131835/Docker-Privilege-Escalation-Information-Disclosure.html[WEB]
- https://seclists.org/fulldisclosure/2015/May/28[WEB]