CVE-2017-14496

highpriority · attend · 64EPSS 0.694 · 99 %ileexploit · functionalEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

69.4% (99th) EPSS

CVSS 7.8 · high

Is it mine?

63 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-22

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixeddnsmasq-0:2.76-2.el7_4.2.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.src as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.src as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.src as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.src as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.aarch64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-debuginfo-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.aarch64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
Fixeddnsmasq-utils-0:2.76-2.el7_4.2.x86_64 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2017:2836
FixedRUGGEDCOM RM1224cisa_csaf_ot
Update to V5.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109757544
FixedSCALANCE M-800 / S615cisa_csaf_ot
Update to V5.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109757544
FixedSCALANCE W1750Dcisa_csaf_ot
Update to V6.5.1.5 or later version https://support.industry.siemens.com/cs/ww/en/view/109778052
MitigationRUGGEDCOM RM1224cisa_csaf_ot
SCALANCE M-800 / S615 and RUGGEDCOM RM1224: Disable DNS proxy in the device configuration (System - DNS - DNS Proxy - Disable Checkbox 'Enable DNS Proxy'), and configure the connected devices in the internal network to use a different DNS server
MitigationSCALANCE M-800 / S615cisa_csaf_ot
SCALANCE M-800 / S615 and RUGGEDCOM RM1224: Disable DNS proxy in the device configuration (System - DNS - DNS Proxy - Disable Checkbox 'Enable DNS Proxy'), and configure the connected devices in the internal network to use a different DNS server
MitigationSCALANCE W1750Dcisa_csaf_ot
SCALANCE W1750D: If 'OpenDNS', 'Captive Portal' or 'URL redirection' functionality is not used, deploy firewall rules in the device configuration to block incoming access to port 53/UDP

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Csecondary · Red Hat Product Security US

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Red Hat Product Security US

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:Csecondary · CISA US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-191USprimaryCWE-125USCWE-191USCWE-191US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-42946Dnsmasq < 2.78 - Integer Underflowfunctional · exploit_db

affected products (63)

Products and version ranges known to be affected.

Siemens RUGGEDCOM RM1224: All versions < V5.0all versionscisa_csaf_otUS
Siemens SCALANCE M-800 / S615: All versions < V5.0all versionscisa_csaf_otUS
Siemens SCALANCE W1750D: All versions < V6.5.1.5all versionscisa_csaf_otUS
Siemens RUGGEDCOM RM1224< V5.0cisa_csaf_otUS
Siemens SCALANCE M-800 / S615< V5.0cisa_csaf_otUS
Siemens SCALANCE W1750D< V6.5.1.5cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
Simon Kelley Dnsmasq≤ 2.78fstec_bduRU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 17.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 7.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 7.1nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
google android= 4.4.4nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 5.0.2nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 5.1.1nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 6.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 6.0.1nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*
google android= 7.0nvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*

showing 20 of 63

advisories (2)

Vendor and ecosystem advisories describing this.

RHSA-2017:2836Red Hat Security Advisory: dnsmasq security update2017-10-02csaf · redhat_csafUS
An update for dnsmasq is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
ICSA-17-332-01Siemens SCALANCE W1750D, M800, S615, and RUGGEDCOM RM1224 (Update C)2017-11-17icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

also known as (13)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd redhat_csaf NVD CVE.org MITRE

published 2017-10-03modified 2026-06-17

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references (78)

External citations — patches, advisories, analysis.

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