# ALSA-2021:4221: Security update for 5 packages

ALSA-2021:4221, released November 9, 2021, fixes 1 CVE across 5 products. None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/linux/alsa-2021-4221
- Platform: Linux
- Released: Nov 9, 2021
- Priority: Routine (Closes CVE-2021-3602)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/ALSA-2021:4221

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [containers-common](https://patchblox.com/security/data/product/linux/containers-common.md) | almalinux 8 | 1:0.1.41-4.module_el8.5.0+108+00865455 |
| [python-podman-api](https://patchblox.com/security/data/product/linux/python-podman-api.md) | almalinux 8 | 1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39 |
| [skopeo](https://patchblox.com/security/data/product/linux/skopeo.md) | almalinux 8 | 1:0.1.41-4.module_el8.5.0+2635+e4386a39 |
| [skopeo-tests](https://patchblox.com/security/data/product/linux/skopeo-tests.md) | almalinux 8 | 1:0.1.41-4.module_el8.5.0+108+00865455 |
| [toolbox](https://patchblox.com/security/data/product/linux/toolbox.md) | almalinux 8 | 0.0.7-1.module_el8.5.0+108+00865455 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-3602](https://patchblox.com/security/data/cve/CVE-2021-3602.md) | Routine | containers-common: The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.  Se... | 6.5 | 0.0033 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo