CVE-2022-29199 : Exploit Details and Defense Strategies

TensorFlow prior to versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 is affected by a vulnerability in the implementation of

tf.raw_ops.LoadAndRemapMatrix

. Lack of input validation in this function allows for a denial of service attack. Versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 have been patched to address this issue.

Understanding CVE-2022-29199

This section will cover the details of the CVE-2022-29199 vulnerability in TensorFlow.

What is CVE-2022-29199?

TensorFlow versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 are impacted by a flaw that enables a denial of service attack through improper input validation in the

LoadAndRemapMatrix

function.

The Impact of CVE-2022-29199

The vulnerability poses a medium risk with a CVSS base score of 5.5. An attacker with local access can exploit this issue to cause a denial of service.

Technical Details of CVE-2022-29199

In this section, we will delve into the technical aspects of CVE-2022-29199.

Vulnerability Description

The vulnerable implementation of

LoadAndRemapMatrix

lacks proper input validation, allowing an attacker to trigger a denial of service by exploiting a

CHECK

-failure condition.

Affected Systems and Versions

TensorFlow versions < 2.6.4
TensorFlow versions >= 2.7.0rc0, < 2.7.2
TensorFlow versions >= 2.8.0rc0, < 2.8.1
TensorFlow versions >= 2.9.0rc0, < 2.9.0

Exploitation Mechanism

The flaw can be exploited by leveraging the absence of validation for the

initializing_values

vector in the code.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the CVE-2022-29199 vulnerability in TensorFlow.

Immediate Steps to Take

Users are advised to update their TensorFlow installation to versions 2.9.0, 2.8.1, 2.7.2, or 2.6.4, which contain patches for this vulnerability.

Long-Term Security Practices

In the long term, developers should ensure proper input validation in all functions to prevent similar vulnerabilities.

Patching and Updates

Regularly monitor TensorFlow security advisories and apply patches promptly to stay protected from known vulnerabilities.