CVE-2021-25452 : Vulnerability Insights and Analysis
Learn about CVE-2021-25452, an improper input validation vulnerability in Samsung Mobile DSP driver that allows attackers to cause a denial of service on affected devices. Take immediate steps to mitigate this risk.
An improper input validation vulnerability in loading a graph file in the DSP driver prior to SMR Sep-2021 Release 1 allows attackers to perform a permanent denial of service on Samsung Mobile devices with Exynos 980, 9830, or 2100 chipset.
Understanding CVE-2021-25452
This CVE refers to an improper input validation vulnerability that affects Samsung Mobile devices, potentially leading to denial of service attacks.
What is CVE-2021-25452?
CVE-2021-25452 is an improper input validation vulnerability associated with loading graph files in the DSP driver that could result in a persistent denial of service on the affected devices.
The Impact of CVE-2021-25452
The vulnerability poses a medium severity risk with a CVSS base score of 5.5. Attackers with low privileges could exploit the flaw locally to cause a high impact on device availability.
Technical Details of CVE-2021-25452
This section delves into specific technical aspects of the CVE, including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper input validation when loading graph files in the DSP driver, allowing threat actors to induce a persistent denial of service condition on the target device.
Affected Systems and Versions
Samsung Mobile devices running Q (10.0) or R (11.0) with Exynos 980, 9830, or 2100 chipset are susceptible to this vulnerability. Devices prior to SMR Sep-2021 Release 1 are impacted.
Exploitation Mechanism
The vulnerability can be exploited locally, requiring low privileges. Attackers can trigger a permanent denial of service without the need for user interaction.
Mitigation and Prevention
In this section, we explore the necessary steps to mitigate the risks posed by CVE-2021-25452 and prevent future occurrences.
Immediate Steps to Take
Users of affected Samsung Mobile devices should update to SMR Sep-2021 Release 1 or later to address this vulnerability. It is recommended to apply security updates promptly.
Long-Term Security Practices
To enhance device security, users are advised to maintain regular software updates, follow secure coding practices, and stay informed about potential security risks.
Patching and Updates
Samsung Mobile provides security updates to address vulnerabilities. Regularly check for and apply the latest updates to ensure the protection of your device.