CVE-2023-40022 : Vulnerability Insights and Analysis

Rizin vulnerable to Integer Overflow in C++ demangler logic.

Understanding CVE-2023-40022

Rizin is a UNIX-like reverse engineering framework and command-line toolset. This CVE highlights a vulnerability in versions 0.6.0 and prior due to an integer overflow in

consume_count

of

src/gnu_v2/cplus-dem.c

.

What is CVE-2023-40022?

Versions of Rizin before 0.6.1 are susceptible to an integer overflow issue in the C++ demangler logic, specifically in the

consume_count

function. This flaw could be exploited by an attacker to execute arbitrary code or trigger a denial of service.

The Impact of CVE-2023-40022

This vulnerability has a CVSSv3 base score of 7.8, indicating a high severity level. It can lead to a compromise of confidentiality, integrity, and availability of the affected system, without requiring special privileges from the attacker.

Technical Details of CVE-2023-40022

This section provides more insight into the vulnerability, affected systems, and the mechanism of exploitation.

Vulnerability Description

The integer overflow in

consume_count

lacks a modulus check, making it prone to exploitation. Rizin version 0.6.1 includes a fix for this issue.

Affected Systems and Versions

The vulnerability affects Rizin versions earlier than 0.6.1, exposing systems to potential exploits leveraging the integer overflow in the C++ demangling logic.

Exploitation Mechanism

Attackers can leverage the integer overflow in the C++ demangler logic to execute malicious code or disrupt system operations, impacting confidentiality, integrity, and availability.

Mitigation and Prevention

To secure systems against CVE-2023-40022, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Users are advised to update Rizin to version 0.6.1 or later to mitigate the vulnerability. A temporary workaround involves disabling C++ demangling using the

bin.demangle=false

configuration option.

Long-Term Security Practices

Ensuring regular software updates, monitoring security advisories, and implementing secure coding practices can enhance the overall security posture.

Patching and Updates

Stay informed about security patches and updates released by Rizin to address vulnerabilities and enhance the security of the framework.