CVE-2021-44501 Explained : Impact and Mitigation

An issue was discovered in FIS GT.M through V7.0-000 (related to the YottaDB code base). Using crafted input, an attacker can cause calls to ZRead to crash due to a NULL pointer dereference.

Understanding CVE-2021-44501

This CVE involves a vulnerability in FIS GT.M through V7.0-000 that can lead to a crash through a NULL pointer dereference.

What is CVE-2021-44501?

The CVE-2021-44501 vulnerability in FIS GT.M allows an attacker to crash ZRead calls by exploiting a NULL pointer dereference with specific input.

The Impact of CVE-2021-44501

The vulnerability can be exploited by an attacker to cause system crashes, potentially leading to denial of service (DoS) situations.

Technical Details of CVE-2021-44501

This section covers the technical aspects of the CVE in detail.

Vulnerability Description

The vulnerability in FIS GT.M through V7.0-000 allows for crashes in ZRead calls due to NULL pointer dereference triggered by crafted input.

Affected Systems and Versions

Affected versions: FIS GT.M through V7.0-000
Systems using FIS GT.M are vulnerable to this issue.

Exploitation Mechanism

Crafted input is used by an attacker to exploit the vulnerability, which triggers a NULL pointer dereference in ZRead calls.

Mitigation and Prevention

Protecting systems from CVE-2021-44501 is crucial. Here are some steps to mitigate and prevent exploitation.

Immediate Steps to Take

Patch systems with the latest updates from the vendor.
Monitor system logs for any unusual activity.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Implement strict input validation mechanisms in applications.

Patching and Updates

Apply patches provided by FIS GT.M promptly to address the vulnerability.