High severity7.5NVD Advisory· Published Oct 3, 2017· Updated Jun 17, 2026

CVE-2017-14496

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Thekelleys/Dnsmasq2 versions
cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*range: <=2.77
- (no CPE)range: <2.78
Canonical/Ubuntu Linux3 versions
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*
Debian/linux3 versions
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Google/Android9 versions
cpe:2.3:o:google:android:4.4.4:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:google:android:4.4.4:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:7.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*
Novell/Leap2 versions
cpe:2.3:o:novell:leap:42.2:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:novell:leap:42.2:*:*:*:*:*:*:*
- cpe:2.3:o:novell:leap:42.3:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Desktop
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
osv-coords18 versions
pkg:rpm/opensuse/dnsmasq&distro=openSUSE%20Tumbleweed pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATA pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/dnsmasq&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/dnsmasq&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/dnsmasq&distro=SUSE%20OpenStack%20Cloud%207
< 2.86-1.1+ 17 more
- (no CPE)range: < 2.86-1.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-0.16.5.1
- (no CPE)range: < 2.78-0.16.5.1
- (no CPE)range: < 2.78-0.16.5.1
- (no CPE)range: < 2.78-0.17.5.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-6.6.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-0.17.5.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1
- (no CPE)range: < 2.78-18.3.1

Patches

Vulnerability mechanics

References

access.redhat.com/errata/RHSA-2017:2836nvdPatchThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.htmlnvdIssue TrackingMailing ListThird Party Advisory
thekelleys.org.uk/dnsmasq/CHANGELOGnvdRelease NotesVendor Advisory
www.debian.org/security/2017/dsa-3989nvdThird Party Advisory
www.securityfocus.com/bid/101085nvdThird Party AdvisoryVDB Entry
www.securitytracker.com/id/1039474nvdThird Party AdvisoryVDB Entry
www.ubuntu.com/usn/USN-3430-1nvdThird Party Advisory
www.ubuntu.com/usn/USN-3430-2nvdThird Party Advisory
access.redhat.com/security/vulnerabilities/3199382nvdIssue TrackingThird Party Advisory
security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.htmlnvdThird Party Advisory
source.android.com/security/bulletin/2017-10-01nvdThird Party Advisory
www.exploit-db.com/exploits/42946/nvdThird Party AdvisoryVDB Entry
www.kb.cert.org/vuls/id/973527nvdThird Party AdvisoryUS Government Resource
nvidia.custhelp.com/app/answers/detail/a_id/4561nvd
thekelleys.org.uk/gitweb/nvd
www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txtnvd
www.securityfocus.com/bid/101977nvd
cert-portal.siemens.com/productcert/pdf/ssa-689071.pdfnvd
security.gentoo.org/glsa/201710-27nvd
www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.htmlnvd
www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.htmlnvd
www.synology.com/support/security/Synology_SA_17_59_Dnsmasqnvd

News mentions

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cvss	0.488
epss	0.053
exploit	0.030
kev	0.000
patch	0.000
ransomware	0.000