CVE-2021-22495 : What You Need to Know

An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), Q(10.0), and R(11.0) (Exynos chipsets) software, where the Mali GPU driver allows out-of-bounds access and a device reset. This vulnerability is tracked under the Samsung ID SVE-2020-19174 (January 2021).

Understanding CVE-2021-22495

This section provides insights into the nature and impact of the CVE-2021-22495 vulnerability.

What is CVE-2021-22495?

CVE-2021-22495 involves a security issue on Samsung devices utilizing specific software versions and Exynos chipsets. It allows unauthorized out-of-bounds access via the Mali GPU driver, potentially leading to a device reset.

The Impact of CVE-2021-22495

The vulnerability poses a risk of unauthorized access to sensitive data and could result in a complete device reset, potentially causing data loss or service disruption.

Technical Details of CVE-2021-22495

In this section, we delve into the technical aspects of the CVE-2021-22495 vulnerability.

Vulnerability Description

The vulnerability arises from improper handling of memory bounds within the Mali GPU driver, enabling malicious actors to access restricted areas of the device's memory.

Affected Systems and Versions

Samsung mobile devices running O(8.x), P(9.0), Q(10.0), and R(11.0) software with Exynos chipsets are susceptible to this security flaw.

Exploitation Mechanism

Cyber attackers can exploit this vulnerability to perform out-of-bounds memory access and potentially trigger a device reset, leading to a denial of service or data compromise.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2021-22495.

Immediate Steps to Take

Users are advised to update their Samsung devices to the latest recommended software version provided by Samsung to patch the vulnerability and enhance device security.

Long-Term Security Practices

Practicing general mobile security measures such as avoiding untrusted sources, utilizing secure networks, and enabling device encryption can bolster overall security posture.

Patching and Updates

Regularly check for software updates and security patches from Samsung to address known vulnerabilities, ensuring the ongoing protection of your device.