Virtuozzo 6 : dnsmasq / dnsmasq-utils (VZLSA-2017-2838)

High Nessus Plugin ID 119230

Synopsis

The remote Virtuozzo host is missing a security update.

Description

An update for dnsmasq is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es) :

* A heap buffer overflow was found in dnsmasq in the code responsible for building DNS replies. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash or, potentially, execute arbitrary code. (CVE-2017-14491)

Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J. Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for reporting this issue.

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected dnsmasq / dnsmasq-utils package.

See Also

http://www.nessus.org/u?e5798885

https://access.redhat.com/errata/RHSA-2017:2838

Plugin Details

Severity: High

ID: 119230

File Name: Virtuozzo_VZLSA-2017-2838.nasl

Version: 1.1

Type: local

Published: 2018/11/27

Modified: 2018/11/27

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:virtuozzo:virtuozzo:dnsmasq, p-cpe:/a:virtuozzo:virtuozzo:dnsmasq-utils, cpe:/o:virtuozzo:virtuozzo:6

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

Patch Publication Date: 2017/10/02

Reference Information

CVE: CVE-2017-14491