What’s Vulnerable › Vulnerabilities

CVE-2022-27651

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-04 · updated 2026-06-17
• Weakness: CWE-276

Description

A flaw was found in buildah where containers were incorrectly started with non-empty default permissions. A bug was found in Moby (Docker Engine) where containers were incorrectly started with non-empty inheritable Linux process capabilities, enabling an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs. This has the potential to impact confidentiality and integrity.

Affected products

• Buildah Project Buildah: before 1.25.0 — fixed in 1.25.0
• Fedoraproject Fedora: 34, 35, 36
• Red Hat Enterprise Linux: 7.0, 8.0

How to fix

Upgrade to a fixed version: Buildah Project Buildah 1.25.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2066840
• https://github.com/containers/buildah/commit/e7e55c988c05dd74005184ceb64f097a0cfe645b
• https://github.com/containers/buildah/security/advisories/GHSA-c3g4-w6cv-6v7h
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25YI27MENCEPZTTGRVU6BQD5V53FNI52/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VWH6X6HOFPO6HTESF42HIJZEPXSWVIO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7NETC7I6RTMMBRJJQVJOJUPDK4W4PQSJ/
• https://bugzilla.redhat.com/show_bug.cgi?id=2066840
• https://github.com/containers/buildah/commit/e7e55c988c05dd74005184ceb64f097a0cfe645b
• https://github.com/containers/buildah/security/advisories/GHSA-c3g4-w6cv-6v7h
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25YI27MENCEPZTTGRVU6BQD5V53FNI52/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VWH6X6HOFPO6HTESF42HIJZEPXSWVIO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7NETC7I6RTMMBRJJQVJOJUPDK4W4PQSJ/

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