RHEL 6 : bind (RHSA-2016:2099)

This script is Copyright (C) 2016-2017 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 6.2
Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update
Support, Red Hat Enterprise Linux 6.5 Advanced Update Support, Red Hat
Enterprise Linux 6.5 Telco Extended Update Support, Red Hat Enterprise
Linux 6.6 Extended Update Support, and Red Hat Enterprise Linux 6.7
Extended Update Support.

Red Hat Product Security has rated this update as having a security
impact of Important. 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) :

* A denial of service flaw was found in the way BIND constructed a
response to a query that met certain criteria. A remote attacker could
use this flaw to make named exit unexpectedly with an assertion
failure via a specially crafted DNS request packet. (CVE-2016-2776)

* A denial of service flaw was found in the way BIND handled packets
with malformed options. A remote attacker could use this flaw to make
named exit unexpectedly with an assertion failure via a specially
crafted DNS packet. (CVE-2016-2848)

Red Hat would like to thank ISC for reporting CVE-2016-2776.

See also :

https://www.redhat.com/security/data/cve/CVE-2016-2776.html
https://www.redhat.com/security/data/cve/CVE-2016-2848.html
https://kb.isc.org/article/AA-01419
https://kb.isc.org/article/AA-01433
http://rhn.redhat.com/errata/RHSA-2016-2099.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 94265 ()

Bugtraq ID:

CVE ID: CVE-2016-2776
CVE-2016-2848

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