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[Important] [Security] Virtuozzo ReadyKernel Patch 158.1 for Virtuozzo Hybrid Server 7.5

Issue date: 2023-07-24

Applies to: Virtuozzo Hybrid Server 7.5

Virtuozzo Advisory ID: VZA-2023-020

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] [3.10.0-1160.41.1.vz7.183.5 to 3.10.0-1160.80.1.vz7.191.4] A use-after-free while changing the network packet scheduler. (CVE-2023-0590)

  • [Important] [3.10.0-1160.41.1.vz7.183.5 to 3.10.0-1160.80.1.vz7.191.4] A null pointer dereference in traffic control when assigning classes to noqueue disciplines. (CVE-2022-47929)

  • [Important] [3.10.0-1160.41.1.vz7.183.5 to 3.10.0-1160.80.1.vz7.191.4] A null pointer dereference caused by a race during updating nftables. (CVE-2023-1095)

3. Installing the Update

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

Dec 12, 2024
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