[Important] [Security] Virtuozzo ReadyKernel Patch 166.1 for Virtuozzo Hybrid Server 7.5

Issue date: 2024-01-22

Applies to: Virtuozzo Hybrid Server 7.5

Virtuozzo Advisory ID: VZA-2024-002

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid 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] A use-after-free vulnerability when a packet is stalled in the bridge ARP queue. (PSBM-151735)

  • [Important] [3.10.0-1160.80.1.vz7.191.4, 3.10.0-1160.90.1.vz7.200.7] IPv6 NDP: Does not respond to solicitation requests. (PSBM-153018)

3. Installing the Update

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