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Test ID:1.3.6.1.4.1.25623.1.0.117277
Category:Denial of Service
Title:Dnsmasq < 2.73rc4 DoS Vulnerability
Summary:Dnsmasq is prone to a Denial of Service (DoS); vulnerability.
Description:Summary:
Dnsmasq is prone to a Denial of Service (DoS)
vulnerability.

Vulnerability Insight:
The tcp_request function in Dnsmasq does not properly
handle the return value of the setup_reply function, which allows remote attackers to
read process memory and cause a denial of service (out-of-bounds read and crash) via a
malformed DNS request.

Affected Software/OS:
Dnsmasq prior to 2.73rc4.

Solution:
Update to version 2.73rc4 or later.

CVSS Score:
6.4

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-3294
BugTraq ID: 74452
http://www.securityfocus.com/bid/74452
Bugtraq: 20150423 Dnsmasq 2.72 Unchecked returned value (Google Search)
http://www.securityfocus.com/archive/1/535354/100/1100/threaded
Debian Security Information: DSA-3251 (Google Search)
http://www.debian.org/security/2015/dsa-3251
https://security.gentoo.org/glsa/201512-01
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.html
http://www.securitytracker.com/id/1032195
SuSE Security Announcement: openSUSE-SU-2015:0857 (Google Search)
http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html
http://www.ubuntu.com/usn/USN-2593-1
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