Amazon Linux 2023 : expat, expat-devel, expat-static (ALAS2023-2024-759)

high Nessus Plugin ID 211371

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Synopsis

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

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-759 advisory.

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

Considering the tradeoff between the stability of Amazon Linux and the impact of CVE-2023-52425 a fix will not be provided for firefox and thunderbird in Amazon Linux 2 at this time. (CVE-2023-52425)

An issue was discovered in libexpat before 2.6.3. xmlparse.c does not reject a negative length for XML_ParseBuffer. (CVE-2024-45490)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'dnf update expat --releasever 2023.6.20241111' to update your system.

Plugin Details

Severity: High

ID: 211371

File Name: al2023_ALAS2023-2024-759.nasl

Version: 1.2

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/14/2024

Updated: 11/15/2024

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: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2024-45490

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:expat-static, p-cpe:/a:amazon:linux:expat-debuginfo, p-cpe:/a:amazon:linux:expat-debugsource, p-cpe:/a:amazon:linux:expat-devel, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:expat

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: 11/13/2024

Vulnerability Publication Date: 2/4/2024

Reference Information

CVE: CVE-2023-52425, CVE-2024-45490

IAVA: 2024-A-0134-S, 2024-A-0543

Detections

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