Vulnerability Monitor

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CVE-2021-3602

An information disclosure flaw was found in Buildah, when building containers using chroot isolation. Running processes in container builds (e.g. Dockerfile RUN commands) can access environment variables from parent and grandparent processes. When run in a container in a CI/CD environment, environment variables may include sensitive information that was shared with the container in order to be used only by Buildah itself (e.g. container registry credentials).

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 4 products from buildah_project, from redhat, from redhat and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-03-03T19:15:08.107

Last Modified

2024-11-21T06:21:57.180

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.4

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-200
Type: Primary
CWE-212

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	buildah_project	buildah	< 1.16.8	Yes
Application	buildah_project	buildah	< 1.17.2	Yes
Application	buildah_project	buildah	< 1.19.9	Yes
Application	buildah_project	buildah	< 1.21.3	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	redhat	enterprise_linux_for_ibm_z_systems	8.0	Yes
Operating System	redhat	enterprise_linux_for_power_little_endian	8.0	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=1969264 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0 Patch, Third Party Advisory ([email protected])
https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjj Third Party Advisory ([email protected])
https://ubuntu.com/security/CVE-2021-3602 Patch, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1969264 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjj Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ubuntu.com/security/CVE-2021-3602 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For buildah_project's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.