CVE-2017-14496

Published: Oct 3, 2017Modified: May 13, 2026

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.

Affected (21)

Products: Canonical: Ubuntu Linux · Debian: Debian Linux · Google: Android · +3 more

Show all products

Canonical: Ubuntu Linux · Debian: Debian Linux · Google: Android · Novell: Leap · Redhat: Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Workstation · Thekelleys: Dnsmasq

1 product

1 product

1 product

1 product

3 products

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Thekelleys

1 product

Dnsmasq

Configuration A

20 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 16.04
Canonical Ubuntu Linux	Version 17.04
Debian Debian Linux	Version 7.0
Debian Debian Linux	Version 7.1
Debian Debian Linux	Version 9.0
Google Android	Version 4.4.4
Google Android	Version 5.0.2
Google Android	Version 5.1.1
Google Android	Version 6.0.1
Google Android	Version 6.0
Google Android	Version 7.0
Google Android	Version 7.1.1
Google Android	Version 7.1.2
Google Android	Version 8.0
Novell Leap	Version 42.2
Novell Leap	Version 42.3
Redhat Enterprise Linux Desktop	Version 7.0
Redhat Enterprise Linux Server	Version 7.0
Redhat Enterprise Linux Workstation	Version 7.0

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Thekelleys Dnsmasq	Up to 2.77

Related CWEs

CWE-191

Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

References (44)

http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html

Source: cve@mitre.org

Issue TrackingMailing ListThird Party Advisory

http://nvidia.custhelp.com/app/answers/detail/a_id/4561

Source: cve@mitre.org

http://thekelleys.org.uk/dnsmasq/CHANGELOG

Source: cve@mitre.org

Release NotesVendor Advisory

http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=897c113fda0886a28a986cc6ba17bb93bd6cb1c7

Source: cve@mitre.org

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt

Source: cve@mitre.org

http://www.debian.org/security/2017/dsa-3989

Source: cve@mitre.org

Third Party Advisory

http://www.securityfocus.com/bid/101085

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

http://www.securityfocus.com/bid/101977

Source: cve@mitre.org

http://www.securitytracker.com/id/1039474

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-3430-1

Source: cve@mitre.org

Third Party Advisory

http://www.ubuntu.com/usn/USN-3430-2

Source: cve@mitre.org

Third Party Advisory

https://access.redhat.com/errata/RHSA-2017:2836

Source: cve@mitre.org

PatchThird Party Advisory

https://access.redhat.com/security/vulnerabilities/3199382

Source: cve@mitre.org

Issue TrackingThird Party Advisory

https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf

Source: cve@mitre.org

https://security.gentoo.org/glsa/201710-27

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://source.android.com/security/bulletin/2017-10-01

Source: cve@mitre.org

Third Party Advisory

https://www.exploit-db.com/exploits/42946/

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://www.kb.cert.org/vuls/id/973527

Source: cve@mitre.org

Third Party AdvisoryUS Government Resource

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://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html