RHEL 7 : bind (RHSA-2017:2533)

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


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update for bind is now available for Red Hat Enterprise Linux 7.2
Extended Update Support and Red Hat Enterprise Linux 7.3 Extended
Update Support.

Red Hat Product Security has rated this update as having a security
impact of Moderate. 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 Berkeley Internet Name Domain (BIND) is an implementation of the
Domain Name System (DNS) protocols. BIND includes a DNS server
(named); a resolver library (routines for applications to use when
interfacing with DNS); and tools for verifying that the DNS server is
operating correctly.

Security Fix(es) :

* It was found that the lightweight resolver protocol implementation
in BIND could enter an infinite recursion and crash when asked to
resolve a query name which, when combined with a search list entry,
exceeds the maximum allowable length. A remote attacker could use this
flaw to crash lwresd or named when using the 'lwres' statement in
named.conf. (CVE-2016-2775)

See also :

https://kb.isc.org/article/AA-01393/
http://rhn.redhat.com/errata/RHSA-2017-2533.html
https://www.redhat.com/security/data/cve/CVE-2016-2775.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.6
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 102726 ()

Bugtraq ID:

CVE ID: CVE-2016-2775

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