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Amazon Linux 2 : libX11 (ALAS-2021-1661)

medium Nessus Plugin ID 150977

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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 ALAS2-2021-1661 advisory.

 A flaw was found in libX11. An integer overflow leading to a heap-buffer overflow occurs when setuid programs call XIM client functions while running with elevated privileges. The highest threat from this vulnerability are to data confidentiality and integrity as well as system vulnerability. (CVE-2020-14344)

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/AL2/ALAS-2021-1661.html

https://access.redhat.com/security/cve/CVE-2020-14344

Plugin Details

Severity: Medium

ID: 150977

File Name: al2_ALAS-2021-1661.nasl

Version: 1.3

Type: local

Agent: unix

Published: 6/23/2021

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: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-14344

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

Temporal Vector: CVSS:3.0/E:U/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:2, p-cpe:/a:amazon:linux:libx11-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/16/2021

Vulnerability Publication Date: 8/5/2020

Reference Information

CVE: CVE-2020-14344

ALAS: 2021-1661