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.
Improper Certificate Validation
Improper Validation of Certificate with Host Mismatch
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| Package | Type | OS Name | OS Version | Affected Ranges | Fix Versions |
|---|---|---|---|---|---|
| debian/openldap | deb | debian | 12 | >=2.5.13+dfsg-5 | Not yet available |
| debian/openldap | deb | debian | 11 | >=2.4.57+dfsg-3+deb11u1 | Not yet available |
| debian/openldap | deb | debian | 13 | >=2.5.17+dfsg-1 | Not yet available |
| debian/openldap | deb | debian | 10 | >=2.4.47+dfsg-3+deb10u7 | Not yet available |
| debian/openldap | deb | debian | unstable | >=2.5.17+dfsg-1 | Not yet available |
Severity and metrics
No CVSS data available from this source.
1.6
1.6
BIT-2020-15719
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BIT-openldap-2020-15719
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1.6
1.6