CVE-2021-25371 Explained : Impact and Mitigation
Discover the impact of CVE-2021-25371, a vulnerability in Samsung Mobile Devices DSP driver allowing arbitrary code execution. Learn how to mitigate and prevent exploitation.
A vulnerability in DSP driver prior to SMR Mar-2021 Release 1 allows attackers to load arbitrary ELF libraries inside DSP.
Understanding CVE-2021-25371
This section will provide an overview of the CVE-2021-25371 vulnerability.
What is CVE-2021-25371?
CVE-2021-25371 is a vulnerability found in DSP driver prior to SMR Mar-2021 Release 1, which enables attackers to load arbitrary ELF libraries inside DSP.
The Impact of CVE-2021-25371
The vulnerability has a CVSS base score of 6.1, with high impact on confidentiality, integrity, and availability. Attackers with high privileges can exploit this vulnerability.
Technical Details of CVE-2021-25371
Here, we will delve into the technical specifics of CVE-2021-25371.
Vulnerability Description
The vulnerability in DSP driver allows the loading of arbitrary ELF libraries inside DSP, posing a significant security risk to affected Samsung Mobile Devices.
Affected Systems and Versions
Samsung Mobile Devices running Q (10.0) and R (11.0) with exynos980, exynos2100, exynos9830 prior to SMR Mar-2021 Release 1 are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting and executing arbitrary code through the DSP driver, compromising the device's security.
Mitigation and Prevention
In this section, we will discuss the steps to mitigate and prevent exploitation of CVE-2021-25371.
Immediate Steps to Take
Users are advised to update their Samsung Mobile Devices to SMR Mar-2021 Release 1 or later to patch the vulnerability. Additionally, avoid executing untrusted code or applications to prevent exploitation.
Long-Term Security Practices
Implementing best security practices, such as regular software updates, exercising caution while installing third-party applications, and avoiding suspicious links or websites, can enhance the security of Samsung Mobile Devices.
Patching and Updates
Samsung Mobile provides security updates regularly to address vulnerabilities like CVE-2021-25371. Ensure that your device is up to date with the latest security patches to protect against known threats.