Kernel security update: Virtuozzo ReadyKernel patch 17.0 for kernels 3.10.0-327.18.2.vz7.15.2 (Virtuozzo 7.0.0), 3.10.0-327.36.1.vz7.18.7 (Virtuozzo 7.0.1), and 3.10.0-327.36.1.vz7.20.18 (Virtuozzo 7.0.3)

Issue date: 2017-04-04

Applies to: Virtuozzo 7.0

Virtuozzo Advisory ID: VZA-2017-027

1. Overview

The cumulative Virtuozzo ReadyKernel patch updated with a security fix. The patch applies to Virtuozzo versions 7.0.0, 7.0.1, and 7.0.3.

2. Security Fixes

• [Important] The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (overflow) or possibly have unspecified other impact via crafted system calls. (CVE-2017-7308)

3. Installing the Update

Download, install, and instantly apply the patch to the current kernel by running ‘readykernel update’.

4. References

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-15.2-17.0-1.vl7/
• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-18.7-17.0-1.vl7/
• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-20.18-17.0-1.vl7/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7308

The JSON file with the list of new and updated packages is available at JSON file.