# RHSA-2024:0876: Security update for 3 packages

RHSA-2024:0876, released February 20, 2024, fixes 4 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2024-0876
- Platform: Linux
- Released: Feb 20, 2024
- Priority: High (Closes CVE-2023-45871, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2024:0876

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kpatch-patch-4_18_0-513_11_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-513-11-1.md) | RHEL 8 | 0:1-1.el8_9 |
| [kpatch-patch-4_18_0-513_5_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-513-5-1.md) | RHEL 8 | 0:1-3.el8_9 |
| [kpatch-patch-4_18_0-513_9_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-513-9-1.md) | RHEL 8 | 0:1-2.el8_9 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-45871](https://patchblox.com/security/data/cve/CVE-2023-45871.md) | High | kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high... | 7.5 | 0.0064 |  |
| [CVE-2023-4921](https://patchblox.com/security/data/cve/CVE-2023-4921.md) | High | kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high... | 7.8 | 0.0042 |  |
| [CVE-2024-0646](https://patchblox.com/security/data/cve/CVE-2024-0646.md) | High | kpatch-patch-4_18_0-513_11_1: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of... | 7.8 | 0.0031 |  |
| [CVE-2023-4623](https://patchblox.com/security/data/cve/CVE-2023-4623.md) | High | kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high... | 7.8 | 0.0028 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo