CVE-2021-3602

Name	CVE-2021-3602
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).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-github-containers-buildah (PTS)	bullseye	1.19.6+dfsg1-1	vulnerable
	bookworm	1.28.2+ds1-3	fixed
	sid, trixie	1.38.0+ds1-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-github-containers-buildah	source	(unstable)	1.22.3+ds1-1

Notes

[bullseye] - golang-github-containers-buildah <no-dsa> (Minor issue)
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)