Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2020-18768

medium Nessus Plugin ID 223344

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - There exists one heap buffer overflow in _TIFFmemcpy in tif_unix.c in libtiff 4.0.10, which allows an attacker to cause a denial-of-service through a crafted tiff file. (CVE-2020-18768)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2020-18768

Plugin Details

Severity: Medium

ID: 223344

File Name: unpatched_CVE_2020_18768.nasl

Version: 1.4

Type: Local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 7/20/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.8

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

CVSS Score Source: CVE-2020-18768

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:compat-libtiff3, p-cpe:/a:centos:centos:libtiff-devel, p-cpe:/a:centos:centos:libtiff-tools, p-cpe:/a:centos:centos:libtiff, p-cpe:/a:redhat:enterprise_linux:compat-libtiff3, p-cpe:/a:redhat:enterprise_linux:libtiff-devel, p-cpe:/a:redhat:enterprise_linux:libtiff-tools, p-cpe:/a:redhat:enterprise_linux:libtiff

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 8/22/2023

Reference Information

CVE: CVE-2020-18768