CVE-2021-45926 Explained : Impact and Mitigation

MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow in mdb_numeric_to_string function.

Understanding CVE-2021-45926

This CVE involves a critical vulnerability in MDB Tools 0.9.2, leading to a stack-based buffer overflow.

What is CVE-2021-45926?

The vulnerability occurs in the mdb_numeric_to_string function called from mdb_xfer_bound_data and _mdb_attempt_bind.

The Impact of CVE-2021-45926

Affects MDB Tools (mdbtools) version 0.9.2
Allows exploitation of a stack-based buffer overflow vulnerability

Technical Details of CVE-2021-45926

Detailed technical information about this CVE.

Vulnerability Description

Stack-based buffer overflow at 0x7ffd0c689be0 in mdb_numeric_to_string
Triggered by functions mdb_xfer_bound_data and _mdb_attempt_bind

Affected Systems and Versions

Product: MDB Tools (aka mdbtools)
Version: 0.9.2 is affected

Exploitation Mechanism

Exploited through maliciously crafted input

Mitigation and Prevention

Measures to address CVE-2021-45926.

Immediate Steps to Take

Update MDB Tools to a non-vulnerable version
Implement input validation to prevent buffer overflows

Long-Term Security Practices

Regularly monitor and update software for security patches
Conduct security audits to identify and address vulnerabilities

Patching and Updates

Apply the patch provided by MDB Tools to fix the buffer overflow vulnerability