RHEL 9 : expat (RHSA-2023:0337)

high Nessus Plugin ID 170422

Synopsis

The remote Red Hat host is missing a security update for expat.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:0337 advisory.

- In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations. (CVE-2022-43680)

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

Solution

Update the RHEL expat package based on the guidance in RHSA-2023:0337.

See Also

https://access.redhat.com/security/cve/CVE-2022-43680

https://access.redhat.com/errata/RHSA-2023:0337

Plugin Details

Severity: High

ID: 170422

File Name: redhat-RHSA-2023-0337.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/23/2023

Updated: 1/26/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, 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-2022-43680

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: cpe:/o:redhat:enterprise_linux:9, cpe:/o:redhat:rhel_aus:9.2, cpe:/o:redhat:rhel_e4s:9.2, cpe:/o:redhat:rhel_eus:9.2, p-cpe:/a:redhat:enterprise_linux:expat, p-cpe:/a:redhat:enterprise_linux:expat-devel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/23/2023

Vulnerability Publication Date: 10/24/2022

Reference Information

CVE: CVE-2022-43680

CWE: 416

RHSA: 2023:0337