Kernel security update: Virtuozzo ReadyKernel patch 15.0 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: 2017-03-20
Applies to: Virtuozzo 7.0
Virtuozzo Advisory ID: VZA-2017-021
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¶
[Moderate] A flaw was discovered in the Linux kernel’s key subsystem. Invoking the request_key() system call with a specially crafted set of arguments could result in a NULL-pointer dereference inside the search_keyring() function. A local unprivileged user could use this vulnerability to crash the system. The vulnerability could be exploited from inside containers. (CVE-2017-2647)
3. Installing the Update¶
Download, install, and instantly apply the patch to the current kernel by running ‘readykernel update’.
The JSON file with the list of new and updated packages is available at http://docs.virtuozzo.com/vza/VZA-2017-021.json.