CVE-2020-36223

HIGH

Openldap < 2.4.57 - Double Free

Title source: rule

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).

References (14)

[Mailing List, Third Party Advisory] http://seclists.org/fulldisclosure/2021/May/64

[Mailing List, Third Party Advisory] http://seclists.org/fulldisclosure/2021/May/65

[Mailing List, Third Party Advisory] http://seclists.org/fulldisclosure/2021/May/70

[Issue Tracking, Vendor Advisory] https://bugs.openldap.org/show_bug.cgi?id=9408

[Patch, Vendor Advisory] https://git.openldap.org/openldap/openldap/-/commit/21981053a1195ae1555e23df4d9ac68d34ede9dd

[Release Notes, Vendor Advisory] https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20210226-0002/

[Third Party Advisory] https://support.apple.com/kb/HT212529

[Third Party Advisory] https://support.apple.com/kb/HT212530

[Third Party Advisory] https://support.apple.com/kb/HT212531

[Third Party Advisory] https://www.debian.org/security/2021/dsa-4845

[Mailing List] https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

[Mailing List] https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

Scores

CVSS v3 7.5

EPSS 0.0667

EPSS Percentile 91.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-125 CWE-415

Status published

Affected Products (22)

apple/macos < 11.4

openldap/openldap < 2.4.57

debian/debian_linux

apple/mac_os_x < 10.14.6

apple/mac_os_x

... and 7 more

Timeline

Published Jan 26, 2021

Tracked Since Feb 18, 2026