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Path Traversal in Moby builder

Moderate severity GitHub Reviewed Published Jan 31, 2024 to the GitHub Advisory Database • Updated Apr 22, 2024

Package

gomod github.com/docker/docker (Go)

Affected versions

< 19.03.9

Patched versions

19.03.9
gomod github.com/moby/moby (Go)
< 19.03.9
19.03.9

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

Published to the GitHub Advisory Database Jan 31, 2024
Reviewed Jan 31, 2024
Last updated Apr 22, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.160%
(54th percentile)

Weaknesses

CVE ID

CVE-2020-27534

GHSA ID

GHSA-6hwg-w5jg-9c6x

Source code

No known source code

Credits

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