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Amazon Linux 2 : compat-libtiff3, --advisory ALAS2-2025-2986 (ALAS-2025-2986)

medium Nessus Plugin ID 261336

Synopsis

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

Description

The version of compat-libtiff3 installed on the remote host is prior to 3.9.4-12. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2986 advisory.

 A vulnerability was determined in LibTIFF up to 4.5.1. Affected by this issue is the function readSeparateStripsetoBuffer of the file tools/tiffcrop.c of the component tiffcrop. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. (CVE-2025-8851)

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 compat-libtiff3' or or 'yum update --advisory ALAS2-2025-2986' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2025-2986.html

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

https://explore.alas.aws.amazon.com/CVE-2025-8851.html

Plugin Details

Severity: Medium

ID: 261336

File Name: al2_ALAS-2025-2986.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/4/2025

Updated: 9/4/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2025-8851

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:compat-libtiff3-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:compat-libtiff3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/4/2025

Vulnerability Publication Date: 8/11/2025

Reference Information

CVE: CVE-2025-8851