CVE-2020-27534

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-22

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes/Release Notes, Third Party Advisory
https://github.com/moby/buildkit/pull/1462Third Party Advisory
https://github.com/moby/moby/pull/40877Third Party Advisory
https://golang.org/pkg/io/ioutil/#TempDirThird Party Advisory
https://golang.org/pkg/os/#TempDirThird Party Advisory
http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes/Release Notes, Third Party Advisory
https://github.com/moby/buildkit/pull/1462Third Party Advisory
https://github.com/moby/moby/pull/40877Third Party Advisory
https://golang.org/pkg/io/ioutil/#TempDirThird Party Advisory
https://golang.org/pkg/os/#TempDirThird Party Advisory

Timeline

Published: Dec 30, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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