Detections
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Amazon Linux AMI : libX11 (ALAS-2021-1462)

high Nessus Plugin ID 144993

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Synopsis

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

Description

The version of libX11 installed on the remote host is prior to 1.6.0-2.2.13. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1462 advisory.

 An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability. (CVE-2020-14363)

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

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/ALAS-2021-1462.html

https://access.redhat.com/security/cve/CVE-2020-14363

Plugin Details

Severity: High

ID: 144993

File Name: ala_ALAS-2021-1462.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/14/2021

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2020-14363

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

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

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: 1/12/2021

Vulnerability Publication Date: 9/11/2020

Reference Information

CVE: CVE-2020-14363

ALAS: 2021-1462