CVE-2017-14491

CRITICAL

dnsmasq <2.78 - Buffer Overflow

Title source: llm

Description

Heap-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 DNS response.

Exploits (2)

exploitdb WORKING POC VERIFIED

by Google Security Research · pythondosmultiple

https://www.exploit-db.com/exploits/42941

View Code ZIP pw:eip

nomisec WRITEUP

by skyformat99 · poc

https://github.com/skyformat99/dnsmasq-2.4.1-fix-CVE-2017-14491

View Code ZIP pw:eip

References (40)

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html

[Third Party Advisory] http://nvidia.custhelp.com/app/answers/detail/a_id/4560

[Third Party Advisory] http://nvidia.custhelp.com/app/answers/detail/a_id/4561

[Exploit, Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.html

[Release Notes, Vendor Advisory] http://thekelleys.org.uk/dnsmasq/CHANGELOG

[Various Sources] http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=0549c73b7ea6b22a3c49beb4d432f185a81efcbc

[Third Party Advisory] http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt

[Third Party Advisory] http://www.debian.org/security/2017/dsa-3989

[Third Party Advisory] http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171103-01-dnsmasq-en

[Broken Link] http://www.securityfocus.com/bid/101085

[Broken Link] http://www.securityfocus.com/bid/101977

[Broken Link] http://www.securitytracker.com/id/1039474

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3430-1

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3430-2

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3430-3

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2836

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2837

... and 20 more

Scores

CVSS v3 9.8

EPSS 0.5779

EPSS Percentile 98.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (34)

arista/eos < 4.15

arubanetworks/arubaos 6.3.1 - 6.3.1.25

canonical/ubuntu_linux 12.04 (2 CPE variants)

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 16.04

canonical/ubuntu_linux 17.04

debian/debian_linux 7.0

debian/debian_linux 7.1

debian/debian_linux 8.0

debian/debian_linux 9.0

... and 24 more

Published Oct 04, 2017

Tracked Since Feb 18, 2026