CVE-2017-13704

7.5 HIGH
Published: October 03, 2017 Modified: May 13, 2026
View on NVD

Description

In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://thekelleys.org.uk/dnsmasq/CHANGELOG
Source: cve@mitre.org
Release Notes Vendor Advisory
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928
Source: cve@mitre.org
http://www.securityfocus.com/bid/101085
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/101977
Source: cve@mitre.org
http://www.securitytracker.com/id/1039474
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://access.redhat.com/security/vulnerabilities/3199382
Source: cve@mitre.org
Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
Source: cve@mitre.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/
Source: cve@mitre.org
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
Source: cve@mitre.org
Third Party Advisory
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
Source: cve@mitre.org
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
Source: cve@mitre.org
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
Source: cve@mitre.org
http://thekelleys.org.uk/dnsmasq/CHANGELOG
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/101085
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/101977
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1039474
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/security/vulnerabilities/3199382
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK/
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
Source: af854a3a-2127-422b-91ae-364da2661108

24 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
65.4%
99th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

thekelleys novell debian redhat fedoraproject canonical

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