{"id":"UBUNTU-CVE-2014-5277","details":"Docker before 1.3.1 and docker-py before 0.5.3 fall back to HTTP when the HTTPS connection to the registry fails, which allows man-in-the-middle attackers to conduct downgrade attacks and obtain authentication and image data by leveraging a network position between the client and the registry to block HTTPS traffic.","modified":"2025-07-16T08:17:06.926994Z","published":"2014-11-17T16:59:00Z","upstream":["CVE-2014-5277"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-5277"},{"type":"REPORT","url":"https://groups.google.com/d/topic/docker-user/oYm0i3xShJU/discussion"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2014-5277"}],"affected":[{"package":{"name":"docker.io","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/docker.io@1.6.2~dfsg1-1ubuntu4~14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.2~dfsg1-1ubuntu4~14.04.1"}]}],"versions":["0.6.7+dfsg1-1","0.6.7+dfsg1-2","0.6.7+dfsg1-3","0.7.1+dfsg1-1","0.7.6+dfsg1-1","0.8.1+dfsg1-1","0.9.1~dfsg1-2","1.0.1~dfsg1-0ubuntu1~ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.6.2~dfsg1-1ubuntu4~14.04.1","binary_name":"docker.io"},{"binary_version":"1.6.2~dfsg1-1ubuntu4~14.04.1","binary_name":"golang-docker-dev"},{"binary_version":"1.6.2~dfsg1-1ubuntu4~14.04.1","binary_name":"vim-syntax-docker"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2014/UBUNTU-CVE-2014-5277.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}