CVE-2022-25821 Explained : Impact and Mitigation
Learn about CVE-2022-25821, a low-severity vulnerability in Samsung Mobile Devices, allowing unauthorized out-of-bounds reads in Shannon baseband, impacting Exynos CP chipsets.
This article provides insights into CVE-2022-25821, a vulnerability impacting Samsung Mobile Devices due to improper use of SMS buffer pointers in Shannon baseband.
Understanding CVE-2022-25821
CVE-2022-25821 is a security vulnerability that allows out-of-bounds read due to improper handling of SMS buffer pointers in Samsung Mobile Devices with Exynos CP chipsets prior to SMR Mar-2022 Release 1.
What is CVE-2022-25821?
The vulnerability in CVE-2022-25821 arises from the mishandling of SMS buffer pointers in the Shannon baseband of Samsung Mobile Devices, potentially leading to an out-of-bounds read.
The Impact of CVE-2022-25821
With a CVSS base score of 3.3, CVE-2022-25821 has a low severity impact, primarily affecting confidentiality with low privileges required for exploitation. The vulnerability poses a risk of unauthorized OOB read.
Technical Details of CVE-2022-25821
Vulnerability Description
The vulnerability results from a flaw in handling SMS buffer pointers, allowing unauthorized OOB reads within Samsung Mobile Devices utilizing Exynos CP chipsets.
Affected Systems and Versions
Samsung Mobile Devices running Q(10), R(11), and S(12) versions with Exynos CP chipsets are impacted prior to SMR Mar-2022 Release 1.
Exploitation Mechanism
Exploiting CVE-2022-25821 requires local access to the device and involves leveraging the vulnerability in SMS buffer pointers to trigger OOB read incidents.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to apply the SMR Mar-2022 Release 1 update to eliminate the vulnerability and prevent potential OOB read exploits.
Long-Term Security Practices
To enhance device security, Samsung Mobile Device users should regularly update their devices with the latest security patches to mitigate known vulnerabilities.
Patching and Updates
Samsung Mobile Device users should stay informed about security updates and promptly install recommended patches to address security vulnerabilities like CVE-2022-25821.