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[Important] [Security] Virtuozzo ReadyKernel patch 143.0 for Virtuozzo Hybrid Server 7.0, 7.5

Issue date: 2022-06-29

Applies to: Virtuozzo Hybrid Server 7.0, Virtuozzo Hybrid Server 7.5

Virtuozzo Advisory ID: VZA-2022-021

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.x.

2. Security Fixes

  • [Important] [3.10.0-1127.8.2.vz7.158.8 to 3.10.0-1160.53.1.vz7.185.3] The bug allows to initialize a non-stateful lookup expressions which points to a not properly detached set, which might lead to UAF. (CVE-2022-1966)

  • [Important] [3.10.0-1127.8.2.vz7.158.8 to 3.10.0-1160.53.1.vz7.185.3] CPU hotplug leads to a VM crash on AMD processors with PCID. (PSBM-139465)

3. Installing the Update

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

Dec 23, 2024
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