CVE-2023-27590 : What You Need to Know

This CVE-2023-27590 involves a stack-based buffer overflow vulnerability in Rizin, a UNIX-like reverse engineering framework and command-line toolset, specifically affecting versions up to 0.5.1. The vulnerability occurs when converting GDB registers profile files into a Rizin register profile, potentially leading to a security issue.

Understanding CVE-2023-27590

This section delves into the details of the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-27590?

The CVE-2023-27590 vulnerability originates in Rizin's handling of GDB registers profile files. When certain fields within these files contain longer values than expected, a stack-based buffer overflow can occur. Users who interact with untrusted GDB register profiles using commands like

drpg

or

arpg

are susceptible to exploitation.

The Impact of CVE-2023-27590

With a CVSS v3.1 base score of 7.8, the vulnerability presents a high severity risk. It can lead to the compromise of confidentiality, integrity, and availability of affected systems. The attack vector is local, and user interaction is required to exploit the vulnerability.

Technical Details of CVE-2023-27590

This section provides insights into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Rizin <= 0.5.1 arises from improper handling of data within GDB registers profile files, leading to a stack-based buffer overflow.

Affected Systems and Versions

The stack-based buffer overflow vulnerability affects versions of the Rizin framework up to and including 0.5.1.

Exploitation Mechanism

Exploiting CVE-2023-27590 involves crafting malicious GDB registers profile files with excessively long values in certain fields to trigger the stack-based buffer overflow.

Mitigation and Prevention

Understanding how to mitigate and prevent the exploitation of CVE-2023-27590 is crucial for maintaining system security.

Immediate Steps to Take

To address this vulnerability, users are advised to review GDB register profiles before loading them using commands like

drpg

or

arpg

. Additionally, applying the patch contained in commit d6196703d89c84467b600ba2692534579dc25ed4 is essential for mitigating the issue.

Long-Term Security Practices

In the long term, users should prioritize secure coding practices, regularly update software to patched versions, and conduct thorough security reviews of any input data processed by applications.

Patching and Updates

It is recommended that all users of Rizin, especially those running versions up to 0.5.1, apply the necessary updates and patches provided by the vendor to address CVE-2023-27590 and enhance the overall security posture of their systems.