Detections
Analytics

Amazon Linux 2022 : (ALAS2022-2022-198)

high Nessus Plugin ID 167021

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Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-198 advisory.

 - valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes. (CVE-2022-23308)

 - In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well. (CVE-2022-29824)

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 libxml2 --releasever=2022.0.20221102' to update your system.

See Also

https://alas.aws.amazon.com/AL2022/ALAS-2022-198.html

https://alas.aws.amazon.com/cve/html/CVE-2022-23308.html

https://alas.aws.amazon.com/cve/html/CVE-2022-29824.html

Plugin Details

Severity: High

ID: 167021

File Name: al2022_ALAS2022-2022-198.nasl

Version: 1.4

Type: local

Agent: unix

Published: 11/5/2022

Updated: 10/5/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.6

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

CVSS Score Source: CVE-2022-29824

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 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:F/RL:O/RC:C

CVSS Score Source: CVE-2022-23308

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libxml2-devel, p-cpe:/a:amazon:linux:libxml2-debuginfo, p-cpe:/a:amazon:linux:python3-libxml2, p-cpe:/a:amazon:linux:libxml2-debugsource, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:libxml2, p-cpe:/a:amazon:linux:python3-libxml2-debuginfo, p-cpe:/a:amazon:linux:libxml2-static

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: 11/1/2022

Vulnerability Publication Date: 2/26/2022

Reference Information

CVE: CVE-2022-23308, CVE-2022-29824