Oracle Linux 6 : dnsmasq (ELSA-2017-2838)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2017:2838 :

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.

See also :

https://oss.oracle.com/pipermail/el-errata/2017-October/007240.html

Solution :

Update the affected dnsmasq packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 103626 ()

Bugtraq ID:

CVE ID: CVE-2017-14491

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