CVE-2018-21043 : Security Advisory and Response

Samsung mobile devices with Exynos 9810 chipsets running O(8.x) and P(9.0) operating systems are affected by a vulnerability in the g2d_drv driver that exposes kernel pointer information through logging.

Understanding CVE-2018-21043

This CVE involves an information disclosure vulnerability on specific Samsung mobile devices.

What is CVE-2018-21043?

This vulnerability affects Samsung mobile devices with Exynos 9810 chipsets and O(8.x) and P(9.0) operating systems. The issue lies in the g2d_drv driver, leading to the exposure of kernel pointer information due to logging.

The Impact of CVE-2018-21043

The vulnerability allows unauthorized access to sensitive kernel information, potentially leading to further exploitation and compromise of the affected devices.

Technical Details of CVE-2018-21043

Samsung mobile devices with the following specifications are impacted:

Vulnerability Description

Vulnerability Type: Information Disclosure
Samsung ID: SVE-2018-13035
Reported: December 2018

Affected Systems and Versions

Devices: Samsung mobile devices with Exynos 9810 chipsets
Operating Systems: O(8.x) and P(9.0)

Exploitation Mechanism

The g2d_drv driver inadvertently exposes kernel pointer information through logging.

Mitigation and Prevention

Immediate Steps to Take:

Apply security patches provided by Samsung promptly.
Monitor official Samsung security updates for mitigation guidance. Long-Term Security Practices:
Regularly update device software to the latest versions.
Implement security best practices to protect against potential exploits.
Consider device replacement if security updates are no longer provided.

Patching and Updates

Samsung has released security updates addressing this vulnerability.