CVE-2021-33651 Explained : Impact and Mitigation

This article provides detailed information about CVE-2021-33651, a vulnerability affecting openEuler:mindspore containers.

Understanding CVE-2021-33651

CVE-2021-33651 is a vulnerability that arises when the attribute depth_multiplier is 0 during the analytical operation of the DepthwiseConv2D operator in openEuler:mindspore containers.

What is CVE-2021-33651?

CVE-2021-33651 occurs due to a division by 0 exception triggered by the depth_multiplier attribute being set to 0 when performing the DepthwiseConv2D operator's analytical operation.

The Impact of CVE-2021-33651

The vulnerability can lead to a denial-of-service condition or potentially exploit other system vulnerabilities, posing a risk to the confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2021-33651

This section outlines specific technical details of the CVE-2021-33651 vulnerability.

Vulnerability Description

CVE-2021-33651 results from the misuse of the depth_multiplier attribute during the DepthwiseConv2D operator's operation, causing a division by 0 exception.

Affected Systems and Versions

The vulnerability affects openEuler:mindspore containers with versions greater than or equal to 1.1.0 and less than 1.3.0.

Exploitation Mechanism

Attackers can exploit CVE-2021-33651 by manipulating the depth_multiplier attribute to trigger a division by 0 exception, leading to a denial-of-service or potential code execution.

Mitigation and Prevention

To address CVE-2021-33651, immediate actions and long-term security practices are essential.

Immediate Steps to Take

Update to a patched version of openEuler:mindspore that resolves the division by 0 exception issue.
Restrict network access to critical systems hosting vulnerable containers.

Long-Term Security Practices

Regularly monitor and apply security patches to containerized applications.
Conduct security assessments and code reviews to identify similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from openEuler to deploy patches promptly and protect against CVE-2021-33651.