CVE-2021-44509 : Exploit Details and Defense Strategies

FIS GT.M through V7.0-000 (related to the YottaDB code base) is vulnerable to an issue that could allow attackers to cause a segmentation fault and crash the application.

Understanding CVE-2021-44509

An explanation of the vulnerability, its impact, technical details, and mitigation steps.

What is CVE-2021-44509?

This CVE describes a vulnerability in FIS GT.M through V7.0-000 that enables attackers to trigger an integer underflow in calls to memset, potentially leading to a crash.

The Impact of CVE-2021-44509

The vulnerability can be exploited to cause a segmentation fault, resulting in a denial of service by crashing the application.

Technical Details of CVE-2021-44509

Insight into the vulnerability's description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

Crafted input can trigger an integer underflow in calls to memset in op_fnj3 in sr_port/op_fnj3.c, leading to a segmentation fault.

Affected Systems and Versions

Product: FIS GT.M through V7.0-000
Vendor: n/a
Version: n/a

Exploitation Mechanism

Attackers utilize crafted input to manipulate calls to memset, causing an integer underflow and subsequent application crash.

Mitigation and Prevention

Recommendations to address the CVE and prevent potential exploitation.

Immediate Steps to Take

Implement a workaround or vendor-supplied patch if available.
Monitor for any signs of exploitation or unusual activity targeting the vulnerability.

Long-Term Security Practices

Regularly update software and ensure patches are promptly applied.
Conduct security assessments and code reviews to identify similar vulnerabilities.

Patching and Updates

Stay informed about official patches and updates from FIS GT.M.
Apply patches promptly to protect systems from potential exploitation.