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CVE-2021-29610 : What You Need to Know

Learn about CVE-2021-29610, a vulnerability in TensorFlow's QuantizeAndDequantizeV2 allowing attackers to read/write to other data on the heap. Find out the impact, affected versions, and mitigation steps.

This article provides insights into CVE-2021-29610, a vulnerability in TensorFlow that allows attackers to read/write to other data on the heap.

Understanding CVE-2021-29610

This section delves into the impact, technical details, and mitigation strategies related to CVE-2021-29610.

What is CVE-2021-29610?

TensorFlow's validation in

tf.raw_ops.QuantizeAndDequantizeV2
allows attackers to read/write to other data on the heap due to improper validation of the
axis
argument.

The Impact of CVE-2021-29610

The vulnerability has a CVSS base score of 3.6, with a LOW severity. Attack complexity is HIGH, attack vector is LOCAL, and integrity impact is LOW, posing a risk of heap underflow.

Technical Details of CVE-2021-29610

This section outlines the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

Improper validation in

QuantizeAndDequantizeV2
allows invalid values for the
axis
argument, enabling attackers to read/write to other data on the heap.

Affected Systems and Versions

The affected versions include TensorFlow < 2.1.4, >= 2.2.0, < 2.2.3, >= 2.3.0, < 2.3.3, and >= 2.4.0, < 2.4.2.

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the

axis
argument to perform unauthorized read/write operations on the heap.

Mitigation and Prevention

This section provides immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users are advised to update TensorFlow to version 2.5.0 or apply the necessary patches provided for versions 2.4.2, 2.3.3, 2.2.3, and 2.1.4 to mitigate the vulnerability.

Long-Term Security Practices

Maintaining up-to-date software, monitoring security advisories, and conducting regular security audits can help prevent such vulnerabilities.

Patching and Updates

Regularly check for security updates and apply patches released by the TensorFlow team to ensure the security of your machine learning models.

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