CVE-2023-6228 : Security Advisory and Response

This CVE record pertains to a heap-based buffer overflow in the cpstriptotile() function within the tools/tiffcp.c file of the Libtiff package.

Understanding CVE-2023-6228

This section delves into the specifics of CVE-2023-6228 and its implications.

What is CVE-2023-6228?

CVE-2023-6228 involves a vulnerability found in the tiffcp utility, which is part of the libtiff package. This vulnerability can be exploited by processing a malicious TIFF file, leading to a heap-based buffer overflow that ultimately results in an application crash.

The Impact of CVE-2023-6228

The impact of this vulnerability is categorized as having a medium severity level. Although it requires user interaction to be exploited, it can have a high impact on the availability of affected systems.

Technical Details of CVE-2023-6228

This section outlines the technical details related to CVE-2023-6228.

Vulnerability Description

The vulnerability is characterized by a heap-based buffer overflow in the cpstriptotile() function within the tiffcp utility of the libtiff package.

Affected Systems and Versions

The following systems and versions are affected by CVE-2023-6228:

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Fedora

Exploitation Mechanism

The exploitation of this vulnerability requires local access to the system and user interaction, making it necessary for a user to trigger the overflow through processing a malicious TIFF file.

Mitigation and Prevention

In order to address CVE-2023-6228, the following mitigation strategies and preventive measures can be adopted:

Immediate Steps to Take

Red Hat Enterprise Linux users are advised to monitor updates from Red Hat for patches addressing this vulnerability.
Exercise caution when processing TIFF files or limit access to potentially malicious files.

Long-Term Security Practices

Employ network security measures to prevent the exploitation of vulnerabilities through file processing.
Follow secure coding practices to mitigate the risk of buffer overflow vulnerabilities.

Patching and Updates

Stay informed about security updates released by Red Hat for the libtiff package and ensure prompt installation of patches to mitigate the risks associated with CVE-2023-6228.