CVE-2021-44494 : Exploit Details and Defense Strategies

An issue in YottaDB and FIS GT.M can lead to a crash in ZRead due to a NULL pointer dereference.

Understanding CVE-2021-44494

This CVE involves a vulnerability that allows an attacker to exploit crafted input to cause crashes in ZRead.

What is CVE-2021-44494?

CVE-2021-44494 is a security flaw found in YottaDB up to version r1.32 and FIS GT.M up to version V7.0-000. It enables attackers to trigger crashes by exploiting a NULL pointer dereference during ZRead calls.

The Impact of CVE-2021-44494

The vulnerability poses a risk of crashing the system when handling specific malicious inputs, potentially leading to denial of service or other security breaches.

Technical Details of CVE-2021-44494

This section provides more detailed technical information about the CVE.

Vulnerability Description

The issue arises due to improper handling of crafted input, leading to NULL pointer dereference during ZRead calls, resulting in system crashes.

Affected Systems and Versions

YottaDB up to version r1.32
FIS GT.M up to version V7.0-000

Exploitation Mechanism

Attackers can exploit this vulnerability by providing specially crafted input to trigger the NULL pointer dereference and crash ZRead operations.

Mitigation and Prevention

Protect your systems from CVE-2021-44494 by following these mitigation steps.

Immediate Steps to Take

Apply patches or updates provided by YottaDB and FIS GT.M to address the vulnerability.
Implement input validation to prevent malicious crafted input from causing crashes.

Long-Term Security Practices

Conduct regular security audits and code reviews to identify and fix vulnerabilities promptly.
Train developers and system administrators on secure coding practices and threat awareness.

Patching and Updates

Stay informed about security advisories and update your software promptly with the latest patches to prevent exploitation of known vulnerabilities.