CVE-2020-36223

CWE-125 — Out-of-bounds ReadCWE-41514 documents9 sources
Severity
7.5HIGH
EPSS
6.7%
top 8.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Apple MAC OS XApple MacosOpenldap Openldap+1 more
Timeline
PublishedJan 26
Latest updateAug 17

Description

A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service (double free and out-of-bounds read).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶NVDopenldap/openldap< 2.4.57
▶Debianopenldap< 2.4.57+dfsg-1+3
▶NVDapple/macos11.1 — 11.4
▶NVDapple/mac_os_x10.14.0 — 10.14.6+1

Also affects: Debian Linux 10.0, 9.0

Patches

Patch: git.openldap.org ↗Patch: git.openldap.org ↗

🔴Vulnerability Details

5
OSV
openldap vulnerabilities↗2025-08-17
▶
GHSA
GHSA-gpx8-c343-gg78: A flaw was discovered in OpenLDAP before 2↗2022-05-24
▶
OSV
openldap vulnerabilities↗2021-02-08
▶
OSV
CVE-2020-36223: A flaw was discovered in OpenLDAP before 2↗2021-01-26
▶
CVEList
CVE-2020-36223: A flaw was discovered in OpenLDAP before 2↗2021-01-25
▶

📋Vendor Advisories

8
Ubuntu
OpenLDAP vulnerabilities↗2025-08-17
▶
Apple
CVE-2020-36223: Security Update 2021-004 Mojave↗2021-05-24
▶
Apple
CVE-2020-36223: macOS Big Sur 11.4↗2021-05-24
▶
Apple
CVE-2020-36223: Security Update 2021-003 Catalina↗2021-05-24
▶
Ubuntu
OpenLDAP vulnerabilities↗2021-02-08
▶