RHEL 8 : libxml2 (RHSA-2023:0173)

high Nessus Plugin ID 170073

Synopsis

The remote Red Hat host is missing one or more security updates for libxml2.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:0173 advisory.

- libxml2: integer overflows with XML_PARSE_HUGE (CVE-2022-40303)

- libxml2: dict corruption caused by entity reference cycles (CVE-2022-40304)

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

Solution

Update the RHEL libxml2 package based on the guidance in RHSA-2023:0173.

See Also

http://www.nessus.org/u?d252d3aa

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2136266

https://bugzilla.redhat.com/show_bug.cgi?id=2136288

https://access.redhat.com/errata/RHSA-2023:0173

Plugin Details

Severity: High

ID: 170073

File Name: redhat-RHSA-2023-0173.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/16/2023

Updated: 4/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2022-40304

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:libxml2, p-cpe:/a:redhat:enterprise_linux:libxml2-devel, p-cpe:/a:redhat:enterprise_linux:python3-libxml2

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: 1/16/2023

Vulnerability Publication Date: 10/20/2022

Reference Information

CVE: CVE-2022-40303, CVE-2022-40304

CWE: 190, 415

RHSA: 2023:0173