CVE-2021-3602

MEDIUM
5.5
CVSS Score
Published: March 3, 2022 at 06:26 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
4 products affected across 2 vendorsEnterprise LinuxEnterprise Linux for IBM Z SystemsEnterprise Linux for Power Little Endian

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 1.22.0v < 1.16.81.17.0 ≤ v < 1.17.21.19.0 ≤ v < 1.19.91.21.0 ≤ v < 1.21.3
Affected range stops below 1.16.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.17.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.19.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.21.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200CWE-212

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