Ubuntu 8.04 LTS / 8.10 / 9.04 : dnsmasq vulnerabilities (USN-827-1)

Ubuntu Security Notice (C) 2009-2015 Canonical, Inc. / NASL script (C) 2009-2015 Tenable Network Security, Inc.

Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

IvAin Arce, Pablo HernAin Jorge, Alejandro Pablo Rodriguez, MartA­n
Coco, Alberto SoliAto Testa and Pablo Annetta discovered that Dnsmasq
did not properly validate its input when processing TFTP requests for
files with long names. A remote attacker could cause a denial of
service or execute arbitrary code with user privileges. Dnsmasq runs
as the 'dnsmasq' user by default on Ubuntu. (CVE-2009-2957)

Steve Grubb discovered that Dnsmasq could be made to dereference a
NULL pointer when processing certain TFTP requests. A remote attacker
could cause a denial of service by sending a crafted TFTP request.

Solution :

Update the affected dnsmasq and / or dnsmasq-base packages.

Risk factor :

Medium / CVSS Base Score : 6.8
CVSS Temporal Score : 5.9
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40848 ()

Bugtraq ID: 36120

CVE ID: CVE-2009-2957