CVE-2021-44489 : Exploit Details and Defense Strategies

YottaDB through r1.32 and V7.0-000 is affected by an integer underflow vulnerability in op_fnj3, allowing attackers to trigger a segmentation fault.

Understanding CVE-2021-44489

An issue in YottaDB allows attackers to cause a crash by exploiting an integer underflow vulnerability.

What is CVE-2021-44489?

The vulnerability in YottaDB enables attackers to manipulate input to trigger an integer underflow and crash the application by causing a segmentation fault.

The Impact of CVE-2021-44489

Exploiting this vulnerability can result in a denial of service by crashing the application, potentially leading to disruption of services or data loss.

Technical Details of CVE-2021-44489

YottaDB's vulnerability provides insight into the specific aspects of the issue.

Vulnerability Description

Attackers can exploit a vulnerability in op_fnj3 to induce an integer underflow, leading to a crash by triggering a segmentation fault in the application.

Affected Systems and Versions

Product: YottaDB through r1.32 and V7.0-000

Exploitation Mechanism

Crafted input can be used to manipulate calls to memset in op_fnj3, causing the size to underflow and trigger a segmentation fault.

Mitigation and Prevention

Taking immediate and long-term actions can help mitigate the risks associated with CVE-2021-44489.

Immediate Steps to Take

Apply available patches or updates from the vendor
Monitor for any unusual activities on the system
Implement strong input validation mechanisms

Long-Term Security Practices

Regularly update and patch software to address vulnerabilities
Conduct security assessments and audits periodically to identify and remediate weaknesses

Patching and Updates

Vendor patches should be promptly applied to eliminate the vulnerability and enhance system security.