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Podman's default inheritable capabilities for linux container not empty

High severity GitHub Reviewed Published Apr 1, 2022 in containers/podman • Updated Jan 27, 2023

Package

gomod github.com/containers/podman/v4 (Go)

Affected versions

< 4.0.3

Patched versions

4.0.3

Description

A bug was found in Podman where containers were created with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2).

This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set.

References

@giuseppe giuseppe published to containers/podman Apr 1, 2022
Published to the GitHub Advisory Database Apr 1, 2022
Reviewed Apr 1, 2022
Published by the National Vulnerability Database Apr 4, 2022
Last updated Jan 27, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2022-27649

GHSA ID

GHSA-qvf8-p83w-v58j

Source code

Credits

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