Important kernel security update: Virtuozzo ReadyKernel patch 16.0 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)¶

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] It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. (CVE-2017-7184)

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-15.2-16.0-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-18.7-16.0-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-20.18-16.0-1.vl7/

• http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7184.html

The JSON file with the list of new and updated packages is available at http://docs.virtuozzo.com/vza/VZA-2017-026.json.