CVE-2021-33654 : Exploit Details and Defense Strategies

This CVE-2021-33654 impacts the openEuler operating system, specifically the mindspore container. The vulnerability arises during the initialization operation of the Split operator, leading to a division by zero exception.

Understanding CVE-2021-33654

CVE-2021-33654 poses a risk due to a division by zero exception that occurs when a dimension in the input shape is 0.

What is CVE-2021-33654?

The vulnerability arises in the Split operator initialization process, triggering a divide by zero exception.

The Impact of CVE-2021-33654

The impact of this CVE is significant as it can lead to denial of service or potentially enable an attacker to execute arbitrary code on the system.

Technical Details of CVE-2021-33654

The technical details of CVE-2021-33654 highlight the specific aspects of the vulnerability.

Vulnerability Description

During the initialization of the Split operator, encountering a dimension with a value of 0 triggers a division by zero exception.

Affected Systems and Versions

The affected system in this case is openEuler with the mindspore container versions >= 0.7.0-beta and < 1.3.0.

Exploitation Mechanism

Exploiting this vulnerability requires crafting input data where a dimension in the input shape evaluates to 0 to trigger the divide by zero exception.

Mitigation and Prevention

To address CVE-2021-33654, it is crucial to implement mitigation strategies and adopt secure practices.

Immediate Steps to Take

Immediate steps include applying patches or updates provided by the vendor to mitigate the vulnerability.

Long-Term Security Practices

Long-term security practices involve regular system updates, security monitoring, and ensuring secure coding practices are followed.

Patching and Updates

Regularly check for security advisories and apply patches promptly to address known vulnerabilities.