# RHSA-2022:0849: Security update for 4 packages

RHSA-2022:0849, released March 14, 2022, fixes 6 CVEs across 4 products. 2 of them are being exploited (CVE-2022-0492); 2 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2022-0849
- Platform: Linux
- Released: Mar 14, 2022
- Priority: Patch now (Closes CVE-2022-0492, exploited (CISA KEV))
- CVEs: 6, exploited: 2, on CISA KEV: 2
- Vendor advisory: https://access.redhat.com/errata/RHSA-2022:0849

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kpatch-patch-4_18_0-348](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-348.md) | RHEL 8 | 0:1-3.el8 |
| [kpatch-patch-4_18_0-348_12_2](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-348-12-2.md) | RHEL 8 | 0:1-1.el8_5 |
| [kpatch-patch-4_18_0-348_2_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-348-2-1.md) | RHEL 8 | 0:1-2.el8_5 |
| [kpatch-patch-4_18_0-348_7_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-348-7-1.md) | RHEL 8 | 0:1-2.el8_5 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-0492](https://patchblox.com/security/data/cve/CVE-2022-0492.md) | Patch now | kernel-tools-libs-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.0553 | CISA KEV |
| [CVE-2021-0920](https://patchblox.com/security/data/cve/CVE-2021-0920.md) | Patch now | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.0087 | CISA KEV |
| [CVE-2022-0435](https://patchblox.com/security/data/cve/CVE-2022-0435.md) | High | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.6777 |  |
| [CVE-2022-22942](https://patchblox.com/security/data/cve/CVE-2022-22942.md) | High | kernel-doc: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.0256 |  |
| [CVE-2021-4154](https://patchblox.com/security/data/cve/CVE-2021-4154.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.0122 |  |
| [CVE-2022-0330](https://patchblox.com/security/data/cve/CVE-2022-0330.md) | High | kernel-tools-libs-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system.  The following packages have be... | 8.8 | 0.0038 |  |

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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