Docker Engine before 1.8.3 and CS Docker Engine before 1.6.2-CS7 does not properly validate and extract the manifest object from its JSON representation during a pull, which allows attackers to inject new attributes in a JSON object and bypass pull-by-digest validation.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "docker.io",
"binary_version": "1.10.3-0ubuntu6"
},
{
"binary_name": "golang-docker-dev",
"binary_version": "1.10.3-0ubuntu6"
},
{
"binary_name": "golang-github-docker-docker-dev",
"binary_version": "1.10.3-0ubuntu6"
},
{
"binary_name": "vim-syntax-docker",
"binary_version": "1.10.3-0ubuntu6"
}
]
}