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Fencer Intel
medium 5.9

CVE-2017-17718 json

net-ldap Improper Certificate Validation vulnerability

published 2017-12-17 8 y ago modified 2026-06-17 4 mo ago also GHSA-m7p8-9w66-9frm , EUVD-2018-0161

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation.

Patch / fix

  • rubygems net-ldap 0.16.0
  • ruby-net-ldap Debian 14, Debian 13, Debian 12 0.16.1-1

debian advisories DEBIAN-CVE-2017-17718

  • tfm satellite capsule 6.7, satellite 6.7 5.0-9.el7sat
  • kobo satellite capsule 6.7, satellite 6.7 0.5.1-1.el7sat
  • pulp satellite capsule 6.7, satellite 6.7 2.21.0-1.el7sat
  • gofer satellite capsule 6.7, satellite 6.7 2.12.5-7.el7sat
  • future satellite capsule 6.7, satellite 6.7 0.16.0-11.el7sat
  • ostree satellite capsule 6.7, satellite 6.7 2017.1-2.atomic.el7
  • foreman satellite capsule 6.7, satellite 6.7 1.24.1.21-1.el7sat
  • katello satellite capsule 6.7, satellite 6.7 3.14.0-6.el7sat

red hat advisories RHSA-2020:1454

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-2017-17718 updated cvss 4.8

rubygem-net-ldap: Missing SSL Certificate Validation

  • Red Hat Ceph Storage 1.3 ruby193-rubygem-net-ldap Red Hat Subscription Asset Manager ruby193-rubygem-net-ldap
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6.7 tfm 5.0-9.el7sat, kobo 0.5.1-1.el7sat, pulp 2.21.0-1.el7sat, gofer 2.12.5-7.el7sat, receptor 0.6.1-1.el7ar, tfm-ror52 1.0-4.el7sat, +502 more Red Hat Satellite Capsule 6.7 tfm 5.0-9.el7sat, kobo 0.5.1-1.el7sat, pulp 2.21.0-1.el7sat, gofer 2.12.5-7.el7sat, tfm-ror52 1.0-4.el7sat, future 0.16.0-11.el7sat, +254 more
    fixed: vendor fix RHSA-2020:1454

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

1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
rubygems net-ldap
<0.16.0
0.16.0

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Intel 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.