CVE-2021-41215 : What You Need to Know

TensorFlow has a vulnerability in its

DeserializeSparse

function that can lead to a null pointer dereference. This CVE details the impact, affected versions, and mitigation steps for this issue.

Understanding CVE-2021-41215

TensorFlow vulnerability in

DeserializeSparse

triggering a null pointer dereference.

What is CVE-2021-41215?

TensorFlow's

DeserializeSparse

shape inference code can cause a null pointer dereference due to assumptions made in the function. This affects versions 2.4.4, 2.5.0 - 2.5.2, and 2.6.0 - 2.6.1.

The Impact of CVE-2021-41215

The vulnerability has a CVSS base score of 5.5, indicating a medium severity impact with high availability impact but no confidentiality or integrity impact.

Technical Details of CVE-2021-41215

Details about the vulnerability technical aspects.

Vulnerability Description

Shape inference code in

DeserializeSparse

triggering null pointer dereference.

Affected Systems and Versions

TensorFlow versions: >= 2.6.0, < 2.6.1
TensorFlow versions: >= 2.5.0, < 2.5.2
TensorFlow versions: < 2.4.4

Exploitation Mechanism

No specific details provided.

Mitigation and Prevention

Steps to address the CVE-2021-41215 vulnerability.

Immediate Steps to Take

Upgrade to TensorFlow 2.7.0 which includes the fix.
Patch TensorFlow 2.6.1, 2.5.2, and 2.4.4 with the cherry-picked commit.

Long-Term Security Practices

Regularly update TensorFlow to the latest versions.
Monitor TensorFlow security advisories for future vulnerabilities.

Patching and Updates

Apply patches promptly when new versions are released.