CVE-2021-3602
An information disclosure flaw was found in Buildah, when building containers using chroot isolation.
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-212
- Affected
- buildah project/buildah · redhat/enterprise linux · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for power little endian
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1969264Issue Tracking, Patch, Third Party Advisory
- https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0Patch, Third Party Advisory
- https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjjThird Party Advisory
- https://ubuntu.com/security/CVE-2021-3602Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1969264Issue Tracking, Patch, Third Party Advisory
- https://github.com/containers/buildah/commit/a468ce0ffd347035d53ee0e26c205ef604097fb0Patch, Third Party Advisory
- https://github.com/containers/buildah/security/advisories/GHSA-7638-r9r3-rmjjThird Party Advisory
- https://ubuntu.com/security/CVE-2021-3602Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.