CVE-2021-3602
Publication date 3 March 2022
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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 | 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 | Ignored end of standard support | |
14.04 LTS trusty | Not in release |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 · Medium |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
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