Skip to main content
No exploitation reportedFix available

CVE-2019-14513

No exploitation reported by the sources we read.

  • Published2019-08-01
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.

Timeline

dates in UTC
  1. 2019-08-0121:15CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
Thekelleys dnsmasq
BranchAffectedFixed in
2.76< 2.762.76

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • dnsmasqUbuntu:Pro:14.04:LTSall versions · no fixed version listed
  • dnsmasqUbuntu:16.04:LTSall versions · fixed in 2.75-1ubuntu0.16.04.10
  • dnsmasqRed Hat:enterprise_linux:7::workstationall versions · fixed in 0:2.76-2.el7and 2 other packages
  • dnsmasqRed Hat:enterprise_linux:7::serverall versions · fixed in 0:2.76-2.el7and 2 other packages
  • dnsmasqRed Hat:enterprise_linux:7::computenodeall versions · fixed in 0:2.76-2.el7and 2 other packages
  • dnsmasqRed Hat:enterprise_linux:7::clientall versions · fixed in 0:2.76-2.el7and 2 other packages
  • dnsmasqDebian:14all versions · fixed in 2.76-1
  • dnsmasqDebian:13all versions · fixed in 2.76-1

2 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-14513 Red Hat Product Security128 products fixed

    dnsmasq: Improper bounds checking leads to a buffer overread

  • RHBA-2017:2117 Red Hat Product Security36 products fixed

    Red Hat Bug Fix Advisory: dnsmasq bug fix and enhancement update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security CVE-2019-14513 · 128 productsFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2019-08-01
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8x2j-2xxw-g7h5

Frequently asked questions

What is CVE-2019-14513?

Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.

Is CVE-2019-14513 actively exploited?

Active exploitation of CVE-2019-14513 has not been confirmed. Its EPSS score was 1.7% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-14513?

CVE-2019-14513 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Running dnsmasq? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record