CVE-2023-35986 Explained : Impact and Mitigation

This article discusses the CVE-2023-35986 vulnerability found in Sante DICOM Viewer Pro, impacting versions up to 12.2.4. It highlights the lack of proper validation for user-supplied data, leading to a stack-based buffer overflow.

Understanding CVE-2023-35986

This section delves into the details of the Sante DICOM Viewer Pro vulnerability and its potential impact.

What is CVE-2023-35986?

Sante DICOM Viewer Pro fails to validate user-supplied data adequately, which can result in a stack-based buffer overflow. This oversight allows attackers to execute arbitrary code within the current process.

The Impact of CVE-2023-35986

The vulnerability poses a high risk, with a CVSSv3.1 base score of 7.8, impacting confidentiality, integrity, and availability. Attackers can exploit this flaw to execute malicious code locally.

Technical Details of CVE-2023-35986

This section provides a deeper dive into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from inadequate validation of user-supplied data during DICOM file parsing, leading to a stack-based buffer overflow.

Affected Systems and Versions

Sante DICOM Viewer Pro versions up to 12.2.4 are affected by this vulnerability.

Exploitation Mechanism

By manipulating DICOM files to trigger the buffer overflow, attackers can execute arbitrary code within the program's context.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the CVE-2023-35986 vulnerability and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update Sante DICOM Viewer Pro to version 12.2.6, which includes fixes for this vulnerability.

Long-Term Security Practices

Implement robust input validation and secure coding practices to prevent buffer overflows and other memory-related vulnerabilities.

Patching and Updates

Regularly update software and apply patches released by vendors to address known security flaws.