[arch-security] [ASA-201509-3] powerdns: denial of service

Remi Gacogne rgacogne at archlinux.org
Mon Sep 7 15:37:59 UTC 2015

Arch Linux Security Advisory ASA-201509-3

Severity: High
Date    : 2015-09-07
CVE-ID  : CVE-2015-5230
Package : powerdns
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE


The package powerdns before version 3.4.6-1 is vulnerable to a remote
denial of service.


Upgrade to 3.4.6-1.

# pacman -Syu "powerdns>=3.4.6-1"

The problem has been fixed upstream in version 3.4.6.


A complete denial of service may be prevented by running the server
inside a supervisor and setting distributor-threads to 1. The service
may still be degraded though.


A bug was found in the PowerDNS Authoritative Server DNS packet
parsing/generation code, which, when exploited, can cause individual
threads (disabling service) or whole processes (allowing a supervisor to
restart them) to crash with just one or a few query packets.


A remote attacker can cause a denial of service by sending specially
crafted DNS queries.



-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 801 bytes
Desc: OpenPGP digital signature
URL: <https://lists.archlinux.org/pipermail/arch-security/attachments/20150907/3c227870/attachment.asc>

More information about the arch-security mailing list