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Amazon Linux 2023 : openldap, openldap-clients, openldap-compat (ALAS2023-2023-177)

high Nessus Plugin ID 175068

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-177 advisory.

 - In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime. (CVE-2021-27212)

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

Solution

Run 'dnf update openldap --releasever 2023.0.20230503' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-177.html

https://alas.aws.amazon.com/cve/html/CVE-2021-27212.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: High

ID: 175068

File Name: al2023_ALAS2023-2023-177.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/3/2023

Updated: 5/4/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-27212

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openldap-compat-debuginfo, p-cpe:/a:amazon:linux:openldap-clients-debuginfo, p-cpe:/a:amazon:linux:openldap, p-cpe:/a:amazon:linux:openldap-servers, p-cpe:/a:amazon:linux:openldap-servers-debuginfo, p-cpe:/a:amazon:linux:openldap-debugsource, p-cpe:/a:amazon:linux:openldap-compat, p-cpe:/a:amazon:linux:openldap-debuginfo, p-cpe:/a:amazon:linux:openldap-clients, p-cpe:/a:amazon:linux:openldap-devel, cpe:/o:amazon:linux:2023

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/27/2023

Vulnerability Publication Date: 2/14/2021

Reference Information

CVE: CVE-2021-27212