Detections
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Virtuozzo 7 : readykernel-patch (VZA-2017-006)

medium Nessus Plugin ID 97978

Synopsis

The remote Virtuozzo host is missing a security update.

Description

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 vulnerabilities :

 - A flaw was found in the way nfnetlink validated length of batch messages that could allow a user logged in to a container as root to cause a general protection fault and crash the host.

 - A flaw was found in the way nfnetlink handled errors while processing batch messages that could allow a user logged in to a container as root to trigger use after free and crash the host.

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.

Solution

Update the readykernel patch.

See Also

https://help.virtuozzo.com/customer/portal/articles/2750451

http://www.nessus.org/u?5e51bf2c

http://www.nessus.org/u?fefcc855

Plugin Details

Severity: Medium

ID: 97978

File Name: Virtuozzo_VZA-2017-006.nasl

Version: 1.7

Type: local

Published: 3/27/2017

Updated: 1/4/2021

Supported Sensors: Nessus

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: 2/21/2017