[Important] [Security] Virtuozzo ReadyKernel Patch 164.1 for Virtuozzo Server 7.5

Issue date: 2023-11-28

Applies to: Virtuozzo Server 7.5

Virtuozzo Advisory ID: VZA-2023-040

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Server 7.5.

2. Security Fixes

• [Important] [3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7] Fixed a use-after-free vulnerability that occurred if modifying and deleting an anonymous set in the same nftables transaction. (CVE-2023-32233)

3. Installing the Update

Download, install, and immediately apply the patch to the current kernel by running readykernel update.

4. References

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-185.3-164.1-1.vl7/
• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-191.4-164.1-1.vl7/
• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-200.7-164.1-1.vl7/

The new and updated packages are listed in the JSON file.