CVE-2021-44483 : Security Advisory and Response

YottaDB through r1.32 and V7.0-000 allows attackers to crash the application by triggering a divide by zero in eb_div function.

Understanding CVE-2021-44483

What is CVE-2021-44483?

YottaDB versions up to r1.32 and V7.0-000 are susceptible to a lack of input validation in the eb_div function within sr_port/eb_muldiv.c, leading to a potential application crash due to a divide by zero operation.

The Impact of CVE-2021-44483

This vulnerability can be exploited by malicious actors to intentionally crash the application, possibly causing denial of service.

Technical Details of CVE-2021-44483

Vulnerability Description

The issue stems from a lack of input validation in calls to the eb_div function, enabling attackers to perform a divide by zero, resulting in an application crash.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions Affected: All versions up to r1.32 and V7.0-000

Exploitation Mechanism

By triggering a divide by zero operation in the eb_div function, attackers can cause the application to crash.

Mitigation and Prevention

Immediate Steps to Take

Update to a patched version that includes input validation in the eb_div function.
Implement input validation mechanisms in critical components to prevent such errors.

Long-Term Security Practices

Regularly monitor for security advisories and updates from YottaDB.
Conduct thorough code reviews and testing to identify and fix similar vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by YottaDB to address this vulnerability.