CVE-2021-22684 : Exploit Details and Defense Strategies

Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash.

Understanding CVE-2021-22684

This CVE identifies a vulnerability in Tizen RT RTOS version 3.0.GBB that can be exploited through integer wrap-around in certain functions.

What is CVE-2021-22684?

CVE-2021-22684 is a vulnerability in Tizen RT RTOS version 3.0.GBB that arises due to improper memory assignment, leading to potential arbitrary memory allocation and subsequent unexpected behavior.

The Impact of CVE-2021-22684

The impact of this vulnerability includes the risk of arbitrary memory allocation, which can result in system crashes and other potential security implications.

Technical Details of CVE-2021-22684

This section outlines the technical aspects of the CVE.

Vulnerability Description

The vulnerability involves integer wrap-around in functions_calloc and mm_zalloc within the Tizen RT RTOS version 3.0.GBB, which can allow for unauthorized memory allocation.

Affected Systems and Versions

The affected product is Tizen RT RTOS, particularly version 3.0.GBB.

Exploitation Mechanism

Exploitation of this vulnerability involves leveraging the improper memory assignment to trigger arbitrary memory allocation.

Mitigation and Prevention

To address CVE-2021-22684, immediate steps and long-term security practices are crucial.

Immediate Steps to Take

Immediately patch affected systems and update to the latest version of Tizen RT RTOS to mitigate the vulnerability.

Long-Term Security Practices

Implement secure coding practices and conduct regular security assessments to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security advisories and apply patches to ensure the ongoing security of the systems.