libcontainer/user/user.go in runC before 0.1.0, as used in Docker before 1.11.2, improperly treats a numeric UID as a potential username, which allows local users to gain privileges via a numeric username in the password file in a container.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-3697.json"