CVE-2019-20017 : Vulnerability Insights and Analysis

A stack-based buffer over-read vulnerability was discovered in the function Mat_VarReadNextInfo5 in the file mat5.c of the matio version 1.5.17, allowing attackers to exploit the system.

Understanding CVE-2019-20017

This CVE-2019-20017 vulnerability affects the matio version 1.5.17, potentially leading to a stack-based buffer over-read.

What is CVE-2019-20017?

CVE-2019-20017 is a security vulnerability found in the matio version 1.5.17, specifically in the function Mat_VarReadNextInfo5 in the file mat5.c. This flaw enables malicious actors to trigger a stack-based buffer over-read.

The Impact of CVE-2019-20017

The exploitation of this vulnerability could allow an attacker to read beyond the allocated buffer, potentially leading to sensitive data exposure or system crashes.

Technical Details of CVE-2019-20017

This section provides technical insights into the CVE-2019-20017 vulnerability.

Vulnerability Description

The vulnerability exists in the Mat_VarReadNextInfo5 function in mat5.c of matio 1.5.17, enabling a stack-based buffer over-read.

Affected Systems and Versions

Affected Version: matio 1.5.17
Systems using matio 1.5.17 are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input data to trigger a stack-based buffer over-read, potentially leading to unauthorized information disclosure.

Mitigation and Prevention

Protecting systems from CVE-2019-20017 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update matio to a patched version that addresses the vulnerability.
Monitor and restrict network access to affected systems.

Long-Term Security Practices

Implement secure coding practices to prevent buffer over-read vulnerabilities.
Regularly update and patch software to mitigate known security risks.
Conduct security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by the matio project to fix the vulnerability.
Stay informed about security updates and apply them promptly to ensure system security.