[arch-security] [ASA-201507-22] bind: denial of service

[Levente Polyak]

Arch Linux Security Advisory ASA-201507-22
==========================================

Severity: High
Date    : 2015-07-29
CVE-ID  : CVE-2015-5477
Package : bind
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package bind before version 9.10.2.P3-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 9.10.2.P3-1.

# pacman -Syu "bind>=9.10.2.P3-1"

The problem has been fixed upstream in version 9.10.2.P3.

Workaround
==========

None.

Description
===========

A flaw was found in the way BIND handled requests for TKEY DNS resource
records. A remote attacker could use this flaw to make named
(functioning as an authoritative DNS server or a DNS resolver) exit
unexpectedly with an assertion failure via a specially crafted DNS
request packet leading to denial of service.

Impact
======

A remote attacker is able to trigger an assertion failure via a
specially crafted DNS request packet that is resulting in unexpected
application crash leading to denial of service.

References
==========

https://kb.isc.org/article/AA-01272/0
https://access.redhat.com/security/cve/CVE-2015-5477

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