[arch-security] [Arch Linux Security Advisory ASA-201412-9] powerdns-recursor: denial of service

Remi Gacogne rgacogne at archlinux.org
Tue Dec 9 09:29:48 UTC 2014

Arch Linux Security Advisory ASA-201412-9

Severity: High
Date    : 2014-12-09
CVE-ID  : CVE-2014-8601
Package : powerdns-recursor
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE-2014


The package powerdns-recursor before version 3.6.2-1 is vulnerable to
remote denial of service.


Upgrade to 3.6.2-1.

# pacman -Syu "powerdns-recursor>=3.6.2-1"

The problem has been fixed upstream in version 3.6.2.


Only clients in allow-from are able to trigger the degraded service, so
this should be limited to your user base.


PowerDNS, while acting as a caching nameserver, can be negatively
impacted by sending queries for specially configured, hard to resolve
domain names. This is the same issue as the ones found in bind
(ASA-201412-7) and unbound (ASA-201412-8).


A remote attacker can trick unbound into consuming a lot of resources by
sending a specially crafted query.



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