Cyber Resilience

CVE-2020-36221

High

Published: 26 January 2021

Published
26 January 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.6620 98.5th percentile
Risk Priority 55 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-36221 is a high-severity Wrap or Wraparound (CWE-191) vulnerability in Apple Mac Os X. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 1.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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).

CWE(s)
CWE-191

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

openldap
openldap
≤ 2.4.57
debian
debian linux
10.0, 9.0
apple
mac os x
10.14.6 · 10.14.0 — 10.14.6
apple
macos
11.1 — 11.4

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References