CVE-2020-36228
HIGHCVSS 7.5/10EPSS 83.38%
Last modified
CVE-2020-36228 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.. EPSS estimates a 83.38% chance of exploitation in the next 30 days.
Description
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openldap | Openldap | < 2.4.57 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Apple | Macos | >= 11.1, < 11.4 |
References
- http://seclists.org/fulldisclosure/2021/May/64Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/65Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/70Mailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9427Issue Tracking, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlMailing List, Third 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
- https://www.debian.org/security/2021/dsa-4845Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/64Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/65Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/70Mailing List, Third Party Advisory
- https://bugs.openldap.org/show_bug.cgi?id=9427Issue Tracking, Vendor Advisory
- https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00005.htmlMailing List, Third 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
- https://www.debian.org/security/2021/dsa-4845Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-36228?
An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.
How severe is CVE-2020-36228?
CVE-2020-36228 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 83.38% probability of exploitation in the next 30 days.
How do I fix CVE-2020-36228?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-36228?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST