<p>Upgrade <code>AlmaLinux:9</code> <code>buildah</code> to version 1:1.31.3-1.el9 or higher.<br>This issue was patched in <code>ALSA-2023:6473</code>.</p>

Incorrect Authorization Affecting buildah package, versions <1:1.31.3-1.el9

Threat Intelligence

0.13% (50^th percentile)

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Snyk ID SNYK-ALMALINUX9-BUILDAH-6061070
published 15 Nov 2023
disclosed 7 Nov 2023

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Introduced: 7 Nov 2023

CVE-2023-25173 Open this link in a new tab CWE-863 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 buildah to version 1:1.31.3-1.el9 or higher.
This issue was patched in ALSA-2023:6473.

NVD Description

Note: Versions mentioned in the description apply only to the upstream buildah package and not the buildah package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

containerd is an open source container runtime. A bug was found in containerd prior to versions 1.6.18 and 1.5.18 where supplementary groups are not set up properly inside a container. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. Downstream applications that use the containerd client library may be affected as well.

This bug has been fixed in containerd v1.6.18 and v.1.5.18. Users should update to these versions and recreate containers to resolve this issue. Users who rely on a downstream application that uses containerd's client library should check that application for a separate advisory and instructions. As a workaround, ensure that the "USER $USERNAME" Dockerfile instruction is not used. Instead, set the container entrypoint to a value similar to ENTRYPOINT ["su", "-", "user"] to allow su to properly set up supplementary groups.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

Incorrect Authorization Affecting buildah package, versions <1:1.31.3-1.el9

Severity

Based on AlmaLinux security rating