CVE-2021-44499 : Exploit Details and Defense Strategies

FIS GT.M through V7.0-000 (YottaDB) allows for a buffer overflow due to a crafted input, leading to a signed integer manipulation. This can result in a stack-based memcpy call.

Understanding CVE-2021-44499

This CVE involves a vulnerability in FIS GT.M that can be exploited to execute a buffer overflow attack.

What is CVE-2021-44499?

The issue stems from manipulating a signed integer through crafted input, causing a buffer's size value to turn into a large negative number. Subsequently, this manipulated value is used as the length parameter in a memcpy call on the stack, triggering a buffer overflow.

The Impact of CVE-2021-44499

The vulnerability allows an attacker to potentially execute arbitrary code or crash the application, posing a significant risk to the security and stability of the affected systems.

Technical Details of CVE-2021-44499

This section delves into the specifics of the vulnerability within FIS GT.M.

Vulnerability Description

An attacker can exploit this flaw by providing manipulated input that coerces a signed integer to represent a large negative number, leading to a buffer overflow during a subsequent memcpy call.

Affected Systems and Versions

Product: FIS GT.M through V7.0-000 (YottaDB)
Version: N/A

Exploitation Mechanism

The vulnerability is exploited by input manipulation that coerces a signed integer to a large negative value, triggering a buffer overflow during a memcpy call.

Mitigation and Prevention

Understanding how to mitigate and prevent vulnerabilities like CVE-2021-44499 is crucial for system security.

Immediate Steps to Take

Apply patches or updates provided by the vendor to address the vulnerability.
Monitor for any unusual activity that may indicate exploitation of the vulnerability.
Consider implementing network security measures to detect and prevent such attacks.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.
Keep systems and software updated to protect against known security issues.
Educate personnel on secure coding practices and awareness of potential threats.

Patching and Updates

Regularly check for security updates and patches from FIS GT.M to secure your systems against CVE-2021-44499.