Vulnerability Description
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssuerCheck).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openldap | Openldap | < 2.4.57 |
| Debian | Debian Linux | 9.0 |
| Apple | Mac Os X | >= 10.14.0, < 10.14.6 |
| Apple | Macos | >= 11.1, < 11.4 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2021/May/64Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2021/May/65Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2021/May/70Mailing ListThird Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9404Issue TrackingVendor Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9424Issue TrackingVendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/38ac838e4150c626bbfa0082b7e2PatchVendor Advisory
- https://git.openldap.org/openldap/openldap/-/commit/58c1748e81c843c5b6e61648d2a4PatchVendor Advisory
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57Release NotesVendor Advisory
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e3
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8
- https://lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210226-0002/Third Party Advisory
- https://support.apple.com/kb/HT212529Third Party Advisory
- https://support.apple.com/kb/HT212530Third Party Advisory
- https://support.apple.com/kb/HT212531Third Party Advisory
FAQ
What is CVE-2020-36221?
CVE-2020-36221 is a vulnerability with a CVSS score of 7.5 (HIGH). An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service (schema_init.c serialNumberAndIssue...
How severe is CVE-2020-36221?
CVE-2020-36221 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-36221?
Check the references section above for vendor advisories and patch information. Affected products include: Openldap Openldap, Debian Debian Linux, Apple Mac Os X, Apple Macos.