Virtuozzo 7 : readykernel-patch (VZA-2017-057)

Medium Nessus Plugin ID 101171


The remote Virtuozzo host is missing a security update.


According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerability :

- A vulnerability was found in the implementation of vxlan interfaces in the Linux kernel. A privileged user inside a container was able to trigger a use-after-free in vxlan_dellink() function with a special sequence of operations with vxlan interfaces, which could result in a system crash or could possibly have other unspecified impact.

Note that Tenable Network Security has extracted the preceding description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the readykernel patch.

See Also

Plugin Details

Severity: Medium

ID: 101171

File Name: Virtuozzo_VZA-2017-057.nasl

Version: $Revision: 3.2 $

Type: local

Published: 2017/07/03

Modified: 2017/07/14

Dependencies: 12634

Risk Information

Risk Factor: Medium

Vulnerability Information

CPE: p-cpe:/a:virtuozzo:virtuozzo:readykernel, cpe:/o:virtuozzo:virtuozzo:7

Required KB Items: Host/local_checks_enabled, Host/Virtuozzo/release, Host/Virtuozzo/rpm-list, Host/readykernel-info

Patch Publication Date: 2017/06/29