CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2021-3602
Medium (5.5). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/containers/buildah 1.16.8, 1.17.2, 1.19.9.
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).
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-212, CWE-200
- Published
- Modified
- Record from
- the NVD, synced
Affected
- buildah_project:buildah
- redhat:enterprise_linux
- redhat:enterprise_linux_for_ibm_z_systems
- redhat:enterprise_linux_for_power_little_endian
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7638-r9r3-rmjj | Go | github.com/containers/buildah | <1.16.8 | 1.16.8 |
| GHSA-7638-r9r3-rmjj | Go | github.com/containers/buildah | >=1.17.0 <1.17.2 | 1.17.2 |
| GHSA-7638-r9r3-rmjj | Go | github.com/containers/buildah | >=1.18.0 <1.19.9 | 1.19.9 |
| GHSA-7638-r9r3-rmjj | Go | github.com/containers/buildah | >=1.20.0 <1.21.3 | 1.21.3 |
| GO-2022-0345 | Go | github.com/containers/buildah | <1.22.0 | 1.22.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1969264
- https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0
- https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjj
- https://ubuntu.com/security/CVE-2021-3602
- https://bugzilla.redhat.com/show_bug.cgi?id=1969264