CVE-2021-45927 : Vulnerability Insights and Analysis

MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow in mdb_numeric_to_string, potentially leading to exploitation.

Understanding CVE-2021-45927

What is CVE-2021-45927?

CVE-2021-45927 is a vulnerability found in MDB Tools 0.9.2, specifically in mdb_numeric_to_string, potentially allowing attackers to trigger a stack-based buffer overflow.

The Impact of CVE-2021-45927

This vulnerability could be exploited to execute arbitrary code or cause a Denial of Service (DoS) condition on the affected system.

Technical Details of CVE-2021-45927

Vulnerability Description

The issue arises from a stack-based buffer overflow at memory address 0x7ffd6e029ee0 within the function mdb_numeric_to_string, which is called from mdb_xfer_bound_data and _mdb_attempt_bind.

Affected Systems and Versions

Product: MDB Tools
Vendor: N/A
Versions: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input that triggers the buffer overflow, potentially leading to code execution or system disruption.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by the vendor promptly.
Restrict network access to vulnerable systems.
Monitor for any unusual system behavior that may indicate exploitation attempts.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflows.
Regularly update and patch software to mitigate known vulnerabilities.

Patching and Updates

Ensure that MDB Tools 0.9.2 is updated to a patched version that addresses the stack-based buffer overflow vulnerability.