CVE-2017-14495

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

Memory leak 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 (memory consumption) via vectors involving DNS response creation.

Affected (10)

Products: Canonical: Ubuntu Linux · Debian: Debian Linux · Redhat: Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Workstation · +1 more

Show all products

Canonical: Ubuntu Linux · Debian: Debian Linux · Redhat: Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Workstation · Thekelleys: Dnsmasq

1 product

1 product

3 products

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Thekelleys

1 product

Dnsmasq

Configuration A

9 vulnerable · 2 platform

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
Redhat Enterprise Linux Desktop	Version 7.0
Redhat Enterprise Linux Server	Version 7.0
Redhat Enterprise Linux Workstation	Version 7.0

Running on/with	Platform Versions
Novell Leap	Version 42.2
Novell Leap	Version 42.3

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Thekelleys Dnsmasq	Up to 2.77

Related CWEs

CWE-772

Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

References (42)

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=51eadb692a5123b9838e5a68ecace3ac579a3a45

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://www.exploit-db.com/exploits/42945/

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