# RHSA-2020:3053: Security update for 24 packages

RHSA-2020:3053, released July 21, 2020, fixes 2 CVEs across 24 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-3053
- Platform: Linux
- Released: Jul 21, 2020
- Priority: High (Closes CVE-2021-20188, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:3053

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [buildah](https://patchblox.com/security/data/product/linux/buildah.md) | RHEL 8 | 0:1.14.9-1.module+el8.2.1+6689+748e6520 |
| [buildah-tests](https://patchblox.com/security/data/product/linux/buildah-tests.md) | RHEL 8 | 0:1.14.9-1.module+el8.2.1+6689+748e6520 |
| [cockpit-podman](https://patchblox.com/security/data/product/linux/cockpit-podman.md) | RHEL 8 | 0:17-1.module+el8.2.1+6636+bf4db4ab |
| [conmon](https://patchblox.com/security/data/product/linux/conmon.md) | RHEL 8 | 2:2.0.17-1.module+el8.2.1+6771+3533eb4c |
| [container-selinux](https://patchblox.com/security/data/product/linux/container-selinux.md) | RHEL 8 | 2:2.135.0-1.module+el8.2.1+6849+893e4f4a |
| [containernetworking-plugins](https://patchblox.com/security/data/product/linux/containernetworking-plugins.md) | RHEL 8 | 0:0.8.6-1.module+el8.2.1+6626+598993b4 |
| [containers-common](https://patchblox.com/security/data/product/linux/containers-common.md) | RHEL 8 | 1:1.0.0-1.module+el8.2.1+6676+604e1b26 |
| [crit](https://patchblox.com/security/data/product/linux/crit.md) | RHEL 8 | 0:3.14-2.module+el8.2.1+6750+e53a300c |
| [criu](https://patchblox.com/security/data/product/linux/criu.md) | RHEL 8 | 0:3.14-2.module+el8.2.1+6750+e53a300c |
| [fuse-overlayfs](https://patchblox.com/security/data/product/linux/fuse-overlayfs.md) | RHEL 8 | 0:1.0.0-2.module+el8.2.1+6465+1a51e8b6 |
| [libslirp](https://patchblox.com/security/data/product/linux/libslirp.md) | RHEL 8 | 0:4.3.0-3.module+el8.2.1+6816+bedf4f91 |
| [libslirp-devel](https://patchblox.com/security/data/product/linux/libslirp-devel.md) | RHEL 8 | 0:4.3.0-3.module+el8.2.1+6816+bedf4f91 |
| [podman](https://patchblox.com/security/data/product/linux/podman.md) | RHEL 8 | 0:1.9.3-2.module+el8.2.1+6867+366c07d6 |
| [podman-docker](https://patchblox.com/security/data/product/linux/podman-docker.md) | RHEL 8 | 0:1.9.3-2.module+el8.2.1+6867+366c07d6 |
| [podman-remote](https://patchblox.com/security/data/product/linux/podman-remote.md) | RHEL 8 | 0:1.9.3-2.module+el8.2.1+6867+366c07d6 |
| [podman-tests](https://patchblox.com/security/data/product/linux/podman-tests.md) | RHEL 8 | 0:1.9.3-2.module+el8.2.1+6867+366c07d6 |
| [python-podman-api](https://patchblox.com/security/data/product/linux/python-podman-api.md) | RHEL 8 | 0:1.2.0-0.2.gitd0a45fe.module+el8.2.1+6465+1a51e8b6 |
| [python3-criu](https://patchblox.com/security/data/product/linux/python3-criu.md) | RHEL 8 | 0:3.14-2.module+el8.2.1+6750+e53a300c |
| [runc](https://patchblox.com/security/data/product/linux/runc.md) | RHEL 8 | 0:1.0.0-66.rc10.module+el8.2.1+6465+1a51e8b6 |
| [skopeo](https://patchblox.com/security/data/product/linux/skopeo.md) | RHEL 8 | 1:1.0.0-1.module+el8.2.1+6676+604e1b26 |
| [skopeo-tests](https://patchblox.com/security/data/product/linux/skopeo-tests.md) | RHEL 8 | 1:1.0.0-1.module+el8.2.1+6676+604e1b26 |
| [slirp4netns](https://patchblox.com/security/data/product/linux/slirp4netns.md) | RHEL 8 | 0:1.0.1-1.module+el8.2.1+6595+03641d72 |
| [toolbox](https://patchblox.com/security/data/product/linux/toolbox.md) | RHEL 8 | 0:0.0.7-1.module+el8.2.1+6465+1a51e8b6 |
| [udica](https://patchblox.com/security/data/product/linux/udica.md) | RHEL 8 | 0:0.2.1-2.module+el8.2.1+6465+1a51e8b6 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-20188](https://patchblox.com/security/data/cve/CVE-2021-20188.md) | High | buildah-tests: The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.  Se... | 7.0 | 0.0026 |  |
| [CVE-2020-1983](https://patchblox.com/security/data/cve/CVE-2020-1983.md) | Routine | libslirp0: A use after free vulnerability in ip_reass() in ip_input.c of libslirp4.2.0 and prior releases allows crafted packets... | 6.5 | 0.0236 |  |

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Data as of 2026-11-07T06:34:28Z 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