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CVE-2020-15719

Published: 14 July 2020

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.

Notes

AuthorNote
mdeslaur
See RH bug for possible regression fixes
per upstream bug, this is an issue with a RH patch to openldap
and doesn't apply to upstream openldap.
Marking as not-affected since Ubuntu does not carry the patch.

Priority

Low

Cvss 3 Severity Score

4.2

Score breakdown

Status

Package Release Status
openldap
Launchpad, Ubuntu, Debian
bionic Not vulnerable

eoan Ignored
(end of life)
focal Not vulnerable

trusty Not vulnerable

upstream Needs triage

xenial Not vulnerable

Severity score breakdown

Parameter Value
Base score 4.2
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N