CVE-2018-21040 : What You Need to Know

Samsung mobile devices with O(8.x) and P(9.0) software versions and Exynos 9810 chipsets are affected by a race condition in the g2d driver, leading to a use-after-free vulnerability.

Understanding CVE-2018-21040

This CVE involves a race condition in the g2d driver on Samsung mobile devices with specific software versions and chipsets.

What is CVE-2018-21040?

Identified as SVE-2018-12959 by Samsung in December 2018
Involves a race condition in the g2d driver causing a use-after-free vulnerability

The Impact of CVE-2018-21040

Allows attackers to potentially execute arbitrary code or crash the device
May lead to unauthorized access to sensitive information

Technical Details of CVE-2018-21040

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Race condition in the g2d driver on Samsung devices
Results in a use-after-free situation

Affected Systems and Versions

Samsung mobile devices with O(8.x) and P(9.0) software versions
Equipped with Exynos 9810 chipsets

Exploitation Mechanism

Attackers can exploit the race condition to manipulate memory and potentially execute malicious code

Mitigation and Prevention

Protecting systems from CVE-2018-21040 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security updates provided by Samsung
Monitor official sources for patches and advisories

Long-Term Security Practices

Regularly update device software and firmware
Implement security best practices to prevent exploitation

Patching and Updates

Samsung has released security updates addressing this vulnerability
Ensure devices are updated with the latest patches and firmware