CVE-2020-27534

medium

Description

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.

References

Advisories

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/

Details

Source: Mitre, NVD

Published: 2020-12-30

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N