CVE-2021-25461 Explained : Impact and Mitigation
Learn about CVE-2021-25461, a vulnerability in Samsung Mobile Devices impacting versions before SMR Sep-2021 Release 1, leading to stack-based Buffer Overflow. Find mitigation steps here.
An improper length check in APAService prior to SMR Sep-2021 Release 1 results in stack-based Buffer Overflow.
Understanding CVE-2021-25461
This CVE affects Samsung Mobile Devices before SMR Sep-2021 Release 1 due to an improper length check leading to a stack-based Buffer Overflow. It has a CVSS base score of 4.
What is CVE-2021-25461?
CVE-2021-25461 is a vulnerability in APAService, a component in Samsung Mobile Devices, that allows attackers to trigger a stack-based Buffer Overflow, potentially leading to arbitrary code execution or denial of service.
The Impact of CVE-2021-25461
The impact of this vulnerability is rated as MEDIUM with a base severity score of 4. It requires a high attack complexity and local access but does not need privileges for exploitation, affecting the integrity and availability of the device.
Technical Details of CVE-2021-25461
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises due to an improper length check in APAService, leading to a stack-based Buffer Overflow.
Affected Systems and Versions
Samsung Mobile Devices running version O(8.1) before SMR Sep-2021 Release 1 are affected by this vulnerability.
Exploitation Mechanism
Attackers with local access can exploit this vulnerability by triggering the stack-based Buffer Overflow in APAService.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-25461, certain steps need to be taken.
Immediate Steps to Take
Users are advised to update their Samsung Mobile Devices to SMR Sep-2021 Release 1 or later to patch the vulnerability. Implementing security updates promptly is crucial.
Long-Term Security Practices
Practicing good security hygiene, such as avoiding suspicious links and apps, can help prevent potential exploits. Regularly updating device software is also recommended.
Patching and Updates
Samsung Mobile provides security updates through their monthly releases. Stay informed about new updates and ensure timely installation to protect against known vulnerabilities.