9.8

CVE-2017-1000231: nlnetlabs ldns Double Free

CVSS: 9.8v3.0CriticalModified
AliasesALPINE-CVE-2017-1000231UBUNTU-CVE-2017-1000231DEBIAN-CVE-2017-1000231
Published 17-11-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-1000231 is a critical (CVSS 9.8) Double Free vulnerability in nlnetlabs ldns. EPSS estimates a 2.65% chance of exploitation in the next 30 days, higher than 85.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
2.65%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3

Timeline

  1. 17-11-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.65%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

0.00 pp

From 2.65% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.65%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • ldns< 1.7.0-r1
Debian1 product
  • ldns< 1.7.0-4 | < 1.6.13-1+deb7u2
Nlnetlabs1 product
Opensuse1 product
  • ldns&distro=openSUSE Tumbleweed< 1.7.1-1.11
Ubuntu1 product
  • ldns< 1.6.17-1ubuntu0.1 | < 1.6.17-8ubuntu0.1

5 vendors · 5 products

References

10 links