CVE-2022-23901 Explained : Impact and Mitigation

A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.

Understanding CVE-2022-23901

This CVE involves a stack overflow vulnerability in re2c 2.2 due to infinite recursion problems in a specific source file.

What is CVE-2022-23901?

The CVE-2022-23901 is a security vulnerability in re2c 2.2 that allows for a stack overflow due to issues related to infinite recursion in the src/dfa/dead_rules.cc file.

The Impact of CVE-2022-23901

This vulnerability could be exploited by malicious actors to cause a denial of service (DoS) condition or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2022-23901

The following are the technical details of CVE-2022-23901:

Vulnerability Description

The vulnerability arises from infinite recursion problems in the src/dfa/dead_rules.cc file, leading to a stack overflow condition in re2c 2.2.

Affected Systems and Versions

The affected systems include all instances running re2c 2.2.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by triggering the infinite recursion issues in the specific source file, resulting in a stack overflow.

Mitigation and Prevention

To address CVE-2022-23901, consider the following mitigation strategies:

Immediate Steps to Take

Update re2c to a patched version that addresses the infinite recursion problems.
Monitor for any unusual or suspicious activities on the system.

Long-Term Security Practices

Implement code review processes to detect and prevent similar vulnerabilities.
Stay informed about security updates and patches for all software components.

Patching and Updates

Regularly apply patches and updates for re2c and other software to safeguard against known vulnerabilities.