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.
https://golang.org/pkg/os/#TempDir
https://golang.org/pkg/io/ioutil/#TempDir
https://github.com/moby/moby/pull/40877
https://github.com/moby/buildkit/pull/1462
http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes/
Source: Mitre, NVD
Published: 2020-12-30
Updated: 2021-01-05
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.0077