CVE-2021-44504 : Exploit Details and Defense Strategies

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base) where an attacker can cause a memory segmentation fault.

Understanding CVE-2021-44504

This CVE involves a vulnerability in FIS GT.M through V7.0-000 leading to a memory segmentation fault due to a signed int interpretation issue.

What is CVE-2021-44504?

Crafted input can make a size variable equal to an extremely large value, interpreted as negative during a check, resulting in a memory segmentation fault.

The Impact of CVE-2021-44504

The vulnerability allows attackers to potentially exploit the application, leading to a memory corruption issue and possibly remote code execution.

Technical Details of CVE-2021-44504

This section provides insights into the vulnerability details of CVE-2021-44504.

Vulnerability Description

Attackers can manipulate a size variable to a negative value, causing a memory segmentation fault.

Affected Systems and Versions

FIS GT.M through V7.0-000 (YottaDB code base).

Exploitation Mechanism

By crafting input to set a size variable as an extremely large value, attackers trigger a memory segmentation fault.

Mitigation and Prevention

In this section, steps to mitigate and prevent the exploitation of CVE-2021-44504 are outlined.

Immediate Steps to Take

Update GT.M to a patched version or the latest release.
Deploy network-level security measures to detect and block malicious inputs.

Long-Term Security Practices

Conduct regular security audits and code reviews to identify vulnerabilities early.
Educate developers on secure coding practices and input validation techniques.

Patching and Updates

Keep GT.M software up to date with security patches to address known vulnerabilities.