CVE-2020-36226 Information

Description

A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing resulting in denial of service.

CVSS Vector

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

Reference

https://git.openldap.org/openldap/openldap/-/commit/5a2017d4e61a6ddc4dcb4415028e0d08eb6bca26 https://git.openldap.org/openldap/openldap/-/commit/c0b61a9486508e5202aa2e0cfb68c9813731b439 https://git.openldap.org/openldap/openldap/-/commit/554dff1927176579d652f2fe60c90e9abbad4c65 https://git.openldap.org/openldap/openldap/-/commit/d169e7958a3e0dc70f59c8374bf8a59833b7bdd8 https://git.openldap.org/openldap/openldap/-/tags/OPENLDAP_REL_ENG_2_4_57 https://bugs.openldap.org/show_bug.cgi?id=9413 https://lists.debian.org/debian-lts-announce/2021/02/msg00005.html https://www.debian.org/security/2021/dsa-4845 https://security.netapp.com/advisory/ntap-20210226-0002/ https://support.apple.com/kb/HT212529 https://support.apple.com/kb/HT212531 http://seclists.org/fulldisclosure/2021/May/70 http://seclists.org/fulldisclosure/2021/May/64 http://seclists.org/fulldisclosure/2021/May/65 https://support.apple.com/kb/HT212530 https://lists.apache.org/thread.html/rc713534b10f9daeee2e0990239fa407e2118e4aa9e88a7041177497c@%3Cissues.guacamole.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5