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Amazon Linux 2 : expat (ALAS-2022-1877)

high Nessus Plugin ID 167226

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Synopsis

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

Description

The version of expat installed on the remote host is prior to 2.1.0-15. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1877 advisory.

 - libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c. (CVE-2022-40674)

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

Solution

Run 'yum update expat' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1877.html

https://alas.aws.amazon.com/cve/html/CVE-2022-40674.html

Plugin Details

Severity: High

ID: 167226

File Name: al2_ALAS-2022-1877.nasl

Version: 1.4

Type: local

Agent: unix

Published: 11/9/2022

Updated: 2/2/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2022-40674

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:expat-static, p-cpe:/a:amazon:linux:expat-debuginfo, p-cpe:/a:amazon:linux:expat-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:expat

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2022

Vulnerability Publication Date: 9/14/2022

Reference Information

CVE: CVE-2022-40674