CVE-2021-25462 : Vulnerability Insights and Analysis
Learn about CVE-2021-25462 affecting Samsung Mobile Devices with Exynos chipsets. This NULL pointer dereference vulnerability could allow memory corruption. Find mitigation steps here.
A NULL pointer dereference vulnerability in NPU driver prior to SMR Sep-2021 Release 1 in Samsung Mobile Devices with Exynos chipsets could allow attackers to cause memory corruption.
Understanding CVE-2021-25462
This CVE affects Samsung Mobile Devices running certain versions prior to SMR Sep-2021 Release 1 due to a NULL pointer dereference vulnerability in the NPU driver.
What is CVE-2021-25462?
CVE-2021-25462 is a vulnerability that could be exploited by attackers to trigger memory corruption in Samsung Mobile Devices using Exynos chipsets.
The Impact of CVE-2021-25462
The impact of this vulnerability is rated as LOW, with attackers needing low privileges and no user interaction to exploit it. Confidentiality impact is none, and integrity impact is low.
Technical Details of CVE-2021-25462
This section provides a detailed overview of the technical aspects of CVE-2021-25462.
Vulnerability Description
The vulnerability is classified as a NULL pointer dereference (CWE-476) in the NPU driver, potentially leading to memory corruption.
Affected Systems and Versions
Samsung Mobile Devices running versions prior to SMR Sep-2021 Release 1 with Exynos chipsets are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability can be exploited locally, with low attack complexity and privileges required, making it easier for attackers to cause memory corruption.
Mitigation and Prevention
To secure systems against CVE-2021-25462, it is essential to take immediate steps and adhere to long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Samsung Mobile to update the NPU driver and mitigate the vulnerability.
Long-Term Security Practices
- Regularly update devices with the latest security patches to protect against known vulnerabilities.
- Implement strict access controls and follow security best practices to prevent unauthorized access.
Patching and Updates
- Stay informed about security updates and advisories from Samsung Mobile to address any security issues promptly.