ASA-201609-29 log generated external raw
[ASA-201609-29] bind: denial of service |
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Arch Linux Security Advisory ASA-201609-29
==========================================
Severity: High
Date : 2016-09-27
CVE-ID : CVE-2016-2776
Package : bind
Type : denial of service
Remote : Yes
Link : https://wiki.archlinux.org/index.php/CVE
Summary
=======
The package bind before version 9.10.4.P3-1 is vulnerable to denial of
service.
Resolution
==========
Upgrade to 9.10.4.P3-1.
# pacman -Syu "bind>=9.10.4.P3-1"
The problem has been fixed upstream in version 9.10.4.P3.
Workaround
==========
None.
Description
===========
Testing by ISC has uncovered a critical error condition which can occur
when a nameserver is constructing a response. A defect in the
rendering of messages into packets can cause 'named' to exit with an
assertion failure in buffer.c while constructing a response to a query
that meets certain criteria.
This assertion can be triggered even if the apparent source address
isn't allowed to make queries (i.e. doesn't match 'allow-query').
Impact
======
A remote attacker is able to perform a denial of service attack via a
specially crafted request.
References
==========
https://kb.isc.org/article/AA-01419/0
https://access.redhat.com/security/cve/CVE-2016-2776
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