CVE-2020-27534
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/moby/moby | <19.03.9 | 19.03.9 |
| Go | github.com/docker/docker | <19.03.9 | 19.03.9 |
References
- https://www.suse.com/security/cve/CVE-2020-27534.html
- https://security-tracker.debian.org/tracker/CVE-2020-27534
- https://nvd.nist.gov/vuln/detail/CVE-2020-27534
- https://github.com/moby/buildkit/pull/1462
- https://github.com/moby/moby/pull/40877
- https://bugzilla.redhat.com/show_bug.cgi?id=1921154
- http://web.archive.org/web/20200530054359/https://docs.docker.com/engine/release-notes
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.