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Fencer Vulns
critical 9.8

CVE-2017-1000232 json

A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.

published 2017-11-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-1500

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

A double-free vulnerability in str2host.c in ldns 1.7.0 have unspecified impact and attack vectors.

Patch / fix

  • ldns Debian 14, Debian 13, Debian 12 1.7.0-4

debian advisories DEBIAN-CVE-2017-1000232

  • ldns Ubuntu 14.04 LTS 1.6.17-1ubuntu0.1
  • ldns Ubuntu 16.04 LTS 1.6.17-8ubuntu0.1

ubuntu advisories UBUNTU-CVE-2017-1000232

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ldns SLE Module for Development Tools 15 SP1, SLE Module for Basesystem 15 SP1 1.7.0-4.3.1

suse advisories SUSE-SU-2020:0801-1

  • ldns openSUSE Leap 15.1 1.7.0-lp151.4.3.1

opensuse advisories openSUSE-SU-2020:0438-1

  • ldns Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 1.7.0-r1

alpine advisories ALPINE-CVE-2017-1000232

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ldns CBL-Mariner 2.0 1.7.0-32

azure linux advisories AZL-10413

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-1000232 updated cvss 5.9

ldns: Memory corruption in ldns_str2rdf_long_str

  • Red Hat Enterprise Linux 6 ldns, ldns-python Red Hat Enterprise Linux 7 ldns, ldns-python
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • nlnetlabs.nl https://www.nlnetlabs.nl/bugs-script/show_bug.cgi?id=1257 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.