CVE-2021-25488 : Security Advisory and Response
Learn about CVE-2021-25488, a medium-severity vulnerability in Samsung Mobile Devices modem interface driver prior to SMR Oct-2021 Release 1, allowing unauthorized out-of-bounds read operations.
A buffer boundary checking vulnerability in the modem interface driver of Samsung Mobile Devices prior to SMR Oct-2021 Release 1 can lead to an out-of-bounds read.
Understanding CVE-2021-25488
This section provides insights into the nature and impact of CVE-2021-25488.
What is CVE-2021-25488?
CVE-2021-25488 is a vulnerability found in the modem interface driver of Samsung Mobile Devices prior to SMR Oct-2021 Release 1. It arises due to the lack of boundary checking in the recv_data() function, allowing unauthorized out-of-bounds read operations.
The Impact of CVE-2021-25488
With a CVSS base score of 5.5, this medium-severity vulnerability has a high impact on confidentiality, potentially leading to unauthorized access to sensitive information.
Technical Details of CVE-2021-25488
Explore the technical aspects and details of CVE-2021-25488.
Vulnerability Description
The vulnerability results from the absence of proper boundary checks in the buffer within the modem interface driver's recv_data() function, enabling unintended out-of-bounds read access.
Affected Systems and Versions
Samsung Mobile Devices running versions O(8.1), P(9.0), Q(10.0), and R(11.0) before the SMR Oct-2021 Release 1 are vulnerable to this flaw.
Exploitation Mechanism
The vulnerability can be exploited locally with low privileges required, making it easier for threat actors to perform unauthorized out-of-bounds read operations.
Mitigation and Prevention
Learn how to address and prevent the CVE-2021-25488 vulnerability effectively.
Immediate Steps to Take
Users are advised to update their Samsung Mobile Devices to at least SMR Oct-2021 Release 1 to mitigate the risk of exploitation from this vulnerability.
Long-Term Security Practices
Regularly applying security updates and patches provided by Samsung Mobile is essential to maintain device security and prevent similar vulnerabilities.
Patching and Updates
Stay informed about security updates from Samsung Mobile and ensure timely installation to protect your device from potential threats.