dnsmasq < 2.63test1 libvirtd TCP Network Packet Parsing Response DNS Amplification DoS

medium Nessus Plugin ID 87594


The remote DNS / DHCP service is affected by a denial of service vulnerability.


The remote dnsmasq server is running a version prior to 2.63test1. It is, therefore, affected by a denial of service vulnerability in libvirtd due to improper parsing of malformed network packets. An unauthenticated, remote attacker can exploit this to cause an amplification of a large amount of DNS queries, resulting in a denial of service condition.


Upgrade to dnsmasq 2.63test1 or later.

See Also



Plugin Details

Severity: Medium

ID: 87594

File Name: dnsmasq_dos-CVE-2012-3411.nasl

Version: 1.3

Type: remote

Family: DNS

Published: 12/22/2015

Updated: 7/10/2018

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Low

Score: 2.5


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/a:thekelleys:dnsmasq

Required KB Items: dns_server/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 6/20/2012

Vulnerability Publication Date: 6/20/2012

Reference Information

CVE: CVE-2012-3411

BID: 54353