CVE-2020-15719 json
libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party package is asserting RFC6125 suppor…
published 2020-07-14 6 y ago modified 2026-09-08 2 mo ago also BIT-openldap-2020-15719 , EUVD-2020-7705
- cvss
- 4.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
libldap in certain third-party OpenLDAP packages has a certificate-validation flaw when the third-party package is asserting RFC6125 support. It considers CN even when there is a non-matching subjectAltName (SAN). This is fixed in, for example, openldap-2.4.46-10.el8 in Red Hat Enterprise Linux.
Patch / fix
- bitnami openldap 2.4.46-10.el8
- openldap openldap 2.4.46-10.el8
- mcafee policy_auditor 6.5.1
- oracle blockchain_platform 21.1.2
- openldap RHEL 8 2.4.46-10.el8
- openldap-clients RHEL 8 2.4.46-10.el8
red hat advisories RHBA-2019:3674
- openldap2 SLE Module for Legacy 15 SP2, SLE Module for Legacy 15 SP1, SLE Module for Development Tools 15 SP2 +3 more 2.4.46-9.34.1
suse advisories SUSE-SU-2020:2581-1
- openldap2 openSUSE Leap 15.2 2.4.46-lp152.14.6.1
- openldap2 openSUSE Leap 15.1 2.4.46-lp151.10.15.1
opensuse advisories openSUSE-SU-2020:1459-1openSUSE-SU-2020:1416-1
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-2020-15719 updated cvss 4.2
openldap: Certificate validation incorrectly matches name against CN-ID
-
Red Hat Enterprise Linux 5 openldap, openldap24-libs Red Hat Enterprise Linux 6 openldap, compat-openldap, openldap-clients, openldap-servers, openldap-servers-sqlaffected: no fix planned “Out of support scope”
-
Red Hat Enterprise Linux 7 openldap, compat-openldap, openldap-clients, openldap-servers, openldap-servers-sqlaffected: no fix available “Fix deferred”
-
Red Hat Enterprise Linux BaseOS (v. 8) openldap 2.4.46-10.el8, openldap-clients 2.4.46-10.el8fixed: vendor fix RHBA-2019:3674
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
2.51% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:H/Au:N/C:P/I:P/A:N |
| OSV | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | openldap | <2.4.46-10.el8 |
2.4.46-10.el8 |
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
oracle.com
/security-alerts/cpuapr2022.html
patch, third-party-advisory, advisory
-
lists.opensuse.org
/opensuse-security-announce/2020-09/msg00033.html
vendor-advisory, mailing-list, third-party-advisory, advisory
-
lists.opensuse.org
/opensuse-security-announce/2020-09/msg00059.html
vendor-advisory, mailing-list, third-party-advisory, advisory
-
bugs.openldap.org
/show_bug.cgi?id=9266
permissions-required, vendor-advisory, advisory
-
bugzilla.redhat.com
/show_bug.cgi?id=1740070
issue-tracking, third-party-advisory, advisory
-
access.redhat.com
/errata/RHBA-2019:3674
third-party-advisory, advisory
-
kc.mcafee.com
/corporate/index?page=content&id=SB10365
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15719
web
Sources
- CVE List CVE-2020-15719
- NVD CVE-2020-15719
- OSV BIT-openldap-2020-15719
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