Amazon Linux 2 : libvncserver (ALAS-2023-2170)

high Nessus Plugin ID 178825

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Synopsis

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

Description

The version of libvncserver installed on the remote host is prior to 0.9.9-14. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2170 advisory.

libvncclient v0.9.13 was discovered to contain a memory leak via the function rfbClientCleanup().
(CVE-2020-29260)

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 libvncserver' to update your system.

Plugin Details

Severity: High

ID: 178825

File Name: al2_ALAS-2023-2170.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 7/26/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2020-29260

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/20/2023

Vulnerability Publication Date: 9/2/2022

Reference Information

CVE: CVE-2020-29260

Detections

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