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No exploitation reportedFix available

CVE-2019-13952

No exploitation reported by the sources we read.

  • Published2019-07-18
  • Fixed in3.2.1 · 2.4.3
  • WeaknessCWE-787

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

The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.

Timeline

dates in UTC
  1. 2019-07-1817:15CVE publishedNVD

Versions per branch

NVD
Gdnsd
BranchAffectedFixed in
3.x≥ 3.0.0, < 3.2.13.2.1
2.4< 2.4.32.4.3

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

  • gdnsdUbuntu:20.04:LTSall versions · no fixed version listed
  • gdnsdUbuntu:18.04:LTSall versions · no fixed version listed
  • gdnsdUbuntu:16.04:LTSall versions · no fixed version listed
  • gdnsdDebian:14all versions · fixed in 3.5.0-1
  • gdnsdDebian:13all versions · fixed in 3.5.0-1
  • gdnsdDebian:12all versions · fixed in 3.5.0-1
  • gdnsdCleanStartall versions · fixed in 2.4.3-r0
  • gdnsdAlpine:v3.24from 3.0.0 · fixed in 2.4.3-r0

10 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Gdnsd to 3.2.1 · 2.4.3

Advisories and patches

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:H/I:H/A:H
Published
2019-07-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-mvpw-pvf4-394c

Frequently asked questions

What is CVE-2019-13952?

The set_ipv6() function in zscan_rfc1035.rl in gdnsd before 2.4.3 and 3.x before 3.2.1 has a stack-based buffer overflow via a long and malformed IPv6 address in zone data.

Is CVE-2019-13952 actively exploited?

Active exploitation of CVE-2019-13952 has not been confirmed. Its EPSS score was 1.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-13952?

CVE-2019-13952 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record