CVE-2021-3675 : What You Need to Know

A detailed overview of CVE-2021-3675, a vulnerability in Synaptics Fingerprint Driver with potential privacy implications.

Understanding CVE-2021-3675

In this section, we will explore what CVE-2021-3675 is and its impact on affected systems.

What is CVE-2021-3675?

The CVE-2021-3675 vulnerability is an Improper Input Validation issue in synaTEE.signed.dll of the Synaptics Fingerprint Driver. It enables a local authorized attacker to overwrite a heap tag, leading to a potential loss of confidentiality.

The Impact of CVE-2021-3675

The impact of CVE-2021-3675 is rated as MEDIUM with a CVSS base score of 5.5. The confidentiality impact is high, affecting various versions of the Synaptics Fingerprint Driver on x86/64 platforms.

Technical Details of CVE-2021-3675

This section will cover the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows a local attacker to overwrite a heap tag, potentially compromising confidentiality.

Affected Systems and Versions

Multiple versions of the Synaptics Fingerprint Driver on x86/64 platforms are affected, including versions 5.1.xxx.26 to 6.0.xx.1111.

Exploitation Mechanism

The vulnerability arises from improper input validation in synaTEE.signed.dll, enabling attackers to manipulate heap memory.

Mitigation and Prevention

Here, we will discuss the immediate steps to take and long-term security practices to mitigate the CVE-2021-3675 vulnerability.

Immediate Steps to Take

Users should update to the patched versions provided by Synaptics to ensure additional input validation.

Long-Term Security Practices

Implementing strong access controls, regular security updates, and monitoring can help enhance overall system security.

Patching and Updates

Regularly updating the Synaptics Fingerprint Driver to the latest secure versions is crucial in preventing potential exploits.