CVE-2017-14493

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

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request.

Affected (12)

Products: Canonical: Ubuntu Linux · Debian: Debian Linux · Opensuse: Leap · +2 more

Show all products

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

1 product

1 product

1 product

3 products

Enterprise Linux Desktop

Enterprise Linux Server

Enterprise Linux Workstation

Thekelleys

1 product

Dnsmasq

Configuration A

11 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
Opensuse Leap	Version 42.2
Opensuse 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-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (40)

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

Third Party Advisory

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

Source: cve@mitre.org

Release NotesVendor Advisory

http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=3d4ff1ba8419546490b464418223132529514033

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.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/errata/RHSA-2017:2837

Source: cve@mitre.org

PatchThird Party Advisory

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

Source: cve@mitre.org

Issue TrackingThird Party Advisory

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

Source: cve@mitre.org

Third Party Advisory

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/42943/

Source: cve@mitre.org

ExploitThird 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

Third Party Advisory

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