CVE-2021-3602
Publication date 3 March 2022
Last updated 11 July 2025
Ubuntu priority
Cvss 3 Severity Score
Description
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).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| golang-github-containers-buildah | 26.04 LTS resolute |
Vulnerable
|
| 24.04 LTS noble |
Vulnerable
|
|
| 22.04 LTS jammy |
Vulnerable
|
|
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
CVSS version: CVSS v3.0
Base score
5.5 · Medium
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
Other references
- https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjj
- https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0 (main)
- https://github.com/containers/buildah/commit/23c478b815fb93c094070baa336bcb6a27c01683 (release-1.21)
- https://github.com/containers/buildah/commit/f4f2a7fc78fa4f12e2f6e6c4ab450aae0d182f3e (release-1.19)
- https://www.cve.org/CVERecord?id=CVE-2021-3602