Amazon Linux 2 : libX11 (ALAS-2023-2356)

medium Nessus Plugin ID 186579

Synopsis

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

Description

The version of libX11 installed on the remote host is prior to 1.6.7-3. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2356 advisory.

- A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.
(CVE-2023-43786)

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 libX11' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2356.html

https://alas.aws.amazon.com/cve/html/CVE-2023-43786.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 186579

File Name: al2_ALAS-2023-2356.nasl

Version: 1.0

Type: local

Agent: unix

Published: 12/4/2023

Updated: 12/4/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-43786

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libx11, p-cpe:/a:amazon:linux:libx11-common, p-cpe:/a:amazon:linux:libx11-debuginfo, p-cpe:/a:amazon:linux:libx11-devel, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/29/2023

Vulnerability Publication Date: 10/5/2023

Reference Information

CVE: CVE-2023-43786