Amazon Linux 2 : openldap (ALAS-2021-1707)

high Nessus Plugin ID 153427


The remote Amazon Linux 2 host is missing a security update.


The version of openldap installed on the remote host is prior to 2.4.44-23. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1707 advisory.

- A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service. (CVE-2020-36225)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Run 'yum update openldap' to update your system.

See Also

Plugin Details

Severity: High

ID: 153427

File Name: al2_ALAS-2021-1707.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/16/2021

Updated: 9/16/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-36225


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openldap, p-cpe:/a:amazon:linux:openldap-clients, p-cpe:/a:amazon:linux:openldap-debuginfo, p-cpe:/a:amazon:linux:openldap-devel, p-cpe:/a:amazon:linux:openldap-servers, p-cpe:/a:amazon:linux:openldap-servers-sql, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2021

Vulnerability Publication Date: 1/26/2021

Reference Information

CVE: CVE-2020-36225

ALAS: 2021-1707

IAVB: 2021-B-0014