CVE-2020-27534

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.77% Top 30%
Third-Party Advisory archive.org Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory golang.org Third-Party Advisory golang.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/moby/buildkit/pull/1462 third party advisory
https://github.com/moby/moby/pull/40877 third party advisory
http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes/ third party advisory release notes
https://golang.org/pkg/io/ioutil/#TempDir third party advisory
https://golang.org/pkg/os/#TempDir third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-27534?
CVE-2020-27534 has been scored as a medium severity vulnerability.
How to fix CVE-2020-27534?
To fix CVE-2020-27534, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-27534 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27534 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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