Virtuozzo 7 : readykernel-patch (VZA-2017-021)

high Nessus Plugin ID 97987

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 vulnerability :

- 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.

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.

Plugin Details

Severity: High

ID: 97987

File Name: Virtuozzo_VZA-2017-021.nasl

Version: 1.15

Type: local

Family: Virtuozzo Local Security Checks

Published: 3/27/2017

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

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: 3/20/2017

Reference Information

CVE: CVE-2017-2647

Detections

Analytics