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Amazon Linux 2 : ncurses (ALAS-2023-2096)

critical Nessus Plugin ID 177881

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Synopsis

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

Description

The version of ncurses installed on the remote host is prior to 6.0-8.20170212. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2096 advisory.

 ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security- relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable. (CVE-2023-29491)

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 ncurses' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2096.html

https://alas.aws.amazon.com/cve/html/CVE-2023-29491.html

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

Plugin Details

Severity: Critical

ID: 177881

File Name: al2_ALAS-2023-2096.nasl

Version: 1.4

Type: local

Agent: unix

Published: 7/1/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-29491

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ncurses-c%2b%2b-libs, p-cpe:/a:amazon:linux:ncurses-debuginfo, p-cpe:/a:amazon:linux:ncurses-devel, p-cpe:/a:amazon:linux:ncurses-term, p-cpe:/a:amazon:linux:ncurses, p-cpe:/a:amazon:linux:ncurses-base, p-cpe:/a:amazon:linux:ncurses-compat-libs, p-cpe:/a:amazon:linux:ncurses-libs, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:ncurses-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: 6/21/2023

Vulnerability Publication Date: 4/14/2023

Reference Information

CVE: CVE-2023-29491