util/binfmt_misc/check.go in Builder in Docker Engine before 19.03.9 calls os.OpenFile with a potentially unsafe qemu-check temporary pathname, constructed with an empty first argument in an ioutil.TempDir call.
{ "versions": [ { "introduced": "0" }, { "fixed": "19.03.9" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27534.json"