Important kernel security update: Virtuozzo ReadyKernel patch 68.2 for Virtuozzo 7.0.4 HF3 to 7.0.8 HF1¶

1. Overview¶

The cumulative Virtuozzo ReadyKernel patch was updated with a security fix. The patch applies to all supported Virtuozzo kernels.

2. Security Fixes¶

• [Important] Transforming an IPv6 socket to an IPv4 and then transforming it back to a listening socket could result in a kernel memory corruption. An unprivileged user on the host or in a container could exploit this to crash the kernel. (CVE-2018-9568)

3. Installing the Update¶

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

4. References¶

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-30.15-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-33.22-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-37.30-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-40.4-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-43.10-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-46.7-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-48.2-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-63.3-68.2-1.vl7/

• https://readykernel.com/patch/Virtuozzo-7/readykernel-patch-64.7-68.2-1.vl7/

• https://bugzilla.redhat.com/show_bug.cgi?id=1655904

The JSON file with the list of new and updated packages is available at https://docs.virtuozzo.com/vza/VZA-2018-088.json.