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CVE-2020-36226

Published: 26 January 2021

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
openldap
Launchpad, Ubuntu, Debian
impish
Released (2.4.57+dfsg-2ubuntu1)
bionic
Released (2.4.45+dfsg-1ubuntu1.9)
focal
Released (2.4.49+dfsg-2ubuntu1.6)
groovy
Released (2.4.53+dfsg-1ubuntu1.3)
xenial
Released (2.4.42+dfsg-2ubuntu3.12)
jammy
Released (2.4.57+dfsg-2ubuntu1)
lunar
Released (2.4.57+dfsg-2ubuntu1)
hirsute
Released (2.4.57+dfsg-2ubuntu1)
kinetic
Released (2.4.57+dfsg-2ubuntu1)
trusty Needed

upstream
Released (2.4.57+dfsg-1)
mantic
Released (2.4.57+dfsg-2ubuntu1)
Patches:
upstream: https://git.openldap.org/openldap/openldap/-/commit/d169e7958a3e0dc70f59c8374bf8a59833b7bdd8

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H