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CVE-2017-14491
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code…
Critical9.8EPSS 86.5%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 86.5% · top 0.3% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (40)
- 1039474 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3989 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://access.redhat.com/security/vulnerabilities/3199382 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101085 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3430-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=0549c73b7ea6b22a3c49beb4d432f185a81efcbc (opens in a new tab)x_refsource_CONFIRMx_transferred
- 101977 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2017:2838 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- VU#973527 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- GLSA-201710-27 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2017:2840 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-3430-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2017:2839 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [dnsmasq-discuss] 20171002 Announce: dnsmasq-2.78. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:2836 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://nvidia.custhelp.com/app/answers/detail/a_id/4561 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:2837 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 42941 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://thekelleys.org.uk/dnsmasq/CHANGELOG (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:2841 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://nvidia.custhelp.com/app/answers/detail/a_id/4560 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2017:2633 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html (opens in a new tab)x_refsource_MISCx_transferred
- [dnsmasq-discuss] 20171002 IMPORTANT SECURITY INFORMATION. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2017-515264ae24 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2017-24f067299e (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- USN-3430-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.html (opens in a new tab)x_refsource_MISCx_transferred
- SUSE-SU-2017:2619 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-449/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171103-01-dnsmasq-en (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-449 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2017-7106a157f5 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SU-2017:2616 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2017:2617 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-3989 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://www.arista.com/en/support/advisories-notices/security-advisories/3577-security-advisory-30 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2017-14491)Record last updated .