Critical severity9.8NVD Advisory· Published Oct 4, 2017· Updated Jun 17, 2026

CVE-2017-14491

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.

AI Insight

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

Affected products

Nvidia/Geforce Experience
cpe:2.3:a:nvidia:geforce_experience:*:*:*:*:*:*:*:*
Range: >=3.0,<3.10.0.55
SUSE S.A./Linux Enterprise Debuginfo2 versions
cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp3:*:*:*:*:*:*
- cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
SUSE S.A./Linux Enterprise Point Of Sale
cpe:2.3:a:suse:linux_enterprise_point_of_sale:11:sp3:*:*:*:*:*:*
Synology/Router Manager
cpe:2.3:a:synology:router_manager:1.1:*:*:*:*:*:*:*
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
Arista/Eos
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*
Range: <=4.15
Arubanetworks/Arubaos
cpe:2.3:o:arubanetworks:arubaos:*:*:*:*:*:*:*:*
Range: >=6.3.1,<6.3.1.25
Canonical/Ubuntu Linux5 versions
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*+ 4 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- 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/linux4 versions
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*+ 3 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:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Huawei/Honor V9 Play Firmware
cpe:2.3:o:huawei:honor_v9_play_firmware:*:*:*:*:*:*:*:*
Range: <jimmy-al00ac00b135
Nvidia/Linux for Tegra (L4T) driver
cpe:2.3:o:nvidia:linux_for_tegra:*:*:*:*:*:*:*:*
Range: <r21.6
OpenSUSE/Leap2 versions
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Desktop2 versions
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server2 versions
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Workstation2 versions
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Siemens Foundation/Ruggedcom Firmware
cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:*:*:*:*:*:*:*:*
Range: <5.0
Siemens Foundation/Scalance M 800 Firmware
cpe:2.3:o:siemens:scalance_m-800_firmware:*:*:*:*:*:*:*:*
Range: <5.0
Siemens Foundation/Scalance S615 Firmware
cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*
Range: <5.0
Siemens Foundation/Scalance W1750d Firmware
cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*
Range: <6.5.1.5
SUSE S.A./Linux Enterprise Server3 versions
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:*+ 2 more
- cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:12:*:*:*:ltss:*:*:*
Synology/Diskstation Manager3 versions
cpe:2.3:o:synology:diskstation_manager:5.2:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:synology:diskstation_manager:5.2:*:*:*:*:*:*:*
- cpe:2.3:o:synology:diskstation_manager:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:synology:diskstation_manager:6.1:*:*:*:*:*:*:*
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

cert-portal.siemens.com/productcert/pdf/ssa-689071.pdfnvdPatchThird Party Advisory
packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.htmlnvdExploitThird Party AdvisoryVDB Entry
www.exploit-db.com/exploits/42941/nvdExploitThird Party AdvisoryVDB Entry
lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.htmlnvdMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.htmlnvdMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.htmlnvdMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.htmlnvdMailing ListThird Party Advisory
nvidia.custhelp.com/app/answers/detail/a_id/4560nvdThird Party Advisory
nvidia.custhelp.com/app/answers/detail/a_id/4561nvdThird Party Advisory
thekelleys.org.uk/dnsmasq/CHANGELOGnvdRelease NotesVendor Advisory
www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txtnvdThird Party Advisory
www.debian.org/security/2017/dsa-3989nvdThird Party Advisory
www.huawei.com/en/psirt/security-advisories/huawei-sa-20171103-01-dnsmasq-ennvdThird Party Advisory
www.ubuntu.com/usn/USN-3430-1nvdThird Party Advisory
www.ubuntu.com/usn/USN-3430-2nvdThird Party Advisory
www.ubuntu.com/usn/USN-3430-3nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2836nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2837nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2838nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2839nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2840nvdThird Party Advisory
access.redhat.com/errata/RHSA-2017:2841nvdThird Party Advisory
access.redhat.com/security/vulnerabilities/3199382nvdThird Party Advisory
security.gentoo.org/glsa/201710-27nvdThird Party Advisory
security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.htmlnvdThird Party Advisory
www.arista.com/en/support/advisories-notices/security-advisories/3577-security-advisory-30nvdMitigationThird Party Advisory
www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-449nvdThird Party Advisory
www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-449/nvdThird Party Advisory
www.debian.org/security/2017/dsa-3989nvdThird Party Advisory
www.kb.cert.org/vuls/id/973527nvdThird Party AdvisoryUS Government Resource
www.synology.com/support/security/Synology_SA_17_59_DnsmasqnvdThird Party Advisory
www.securityfocus.com/bid/101085nvdBroken Link
www.securityfocus.com/bid/101977nvdBroken Link
www.securitytracker.com/id/1039474nvdBroken Link
thekelleys.org.uk/gitweb/nvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/527KNN34RN2SB6MBJG7CKSEBWYE3TJEB/nvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5MMPCJOYPPL4B5RBY4U425PWG7EETDTD/nvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXRZ2W6TV6NLUJC5NOFBSG6PZSMDTYPV/nvd
www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.htmlnvd
www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.htmlnvd

News mentions

No linked articles in our index yet.

cvss	0.637
epss	0.068
exploit	0.030
kev	0.000
patch	0.000
ransomware	0.000