CVE-2021-44506 Explained : Impact and Mitigation

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base) that allows attackers to attempt to jump to a NULL pointer by corrupting a function pointer.

Understanding CVE-2021-44506

This CVE involves a lack of input validation in specific calls within the GT.M software, potentially leading to a security exploit.

What is CVE-2021-44506?

The vulnerability in FIS GT.M allows attackers to corrupt a function pointer by exploiting a lack of input validation, potentially leading to a NULL pointer dereference.

The Impact of CVE-2021-44506

The vulnerability can be exploited by attackers to trigger unexpected behavior, potentially causing denial of service or executing arbitrary code.

Technical Details of CVE-2021-44506

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The issue arises from a lack of input validation in calls to do_verify in sr_unix/do_verify.c within GT.M software.

Affected Systems and Versions

Product: FIS GT.M
Vulnerable Version: through V7.0-000

Exploitation Mechanism

Attackers can attempt to corrupt a function pointer by exploiting the lack of input validation in specific calls within the GT.M software.

Mitigation and Prevention

Protective measures to address and prevent the exploitation of CVE-2021-44506.

Immediate Steps to Take

Apply patches or updates provided by the vendor promptly.
Monitor for any unusual behavior indicating a possible exploitation attempt.

Long-Term Security Practices

Enforce secure coding practices to ensure proper input validation in software development.
Conduct regular security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security updates and patches from FIS GT.M.
Implement a robust patch management process to apply fixes promptly.