CVE-2021-25454 : Exploit Details and Defense Strategies
Learn about CVE-2021-25454, an out-of-bounds read vulnerability in Samsung Mobile Devices, allowing remote DoS attacks via forged aac files. Understand the impact, affected systems, and mitigation steps.
An out-of-bounds read (OOB) vulnerability in the libsaacextractor.so library prior to SMR Sep-2021 Release 1 of Samsung Mobile Devices can lead to remote denial-of-service (DoS) attacks via a forged aac file.
Understanding CVE-2021-25454
This CVE involves an OOB read vulnerability in a specific library of Samsung Mobile Devices, potentially exploited for remote DoS attacks.
What is CVE-2021-25454?
The vulnerability allows attackers to trigger a remote DoS scenario by utilizing a forged aac file, exploiting the libsaacextractor.so library before the SMR Sep-2021 Release 1.
The Impact of CVE-2021-25454
With a CVSS base score of 3.1 (Low severity), this vulnerability poses a significant risk as attackers can disrupt services remotely without requiring privileges but with user interaction. This could lead to service unavailability.
Technical Details of CVE-2021-25454
The technical details of this CVE cover the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from an OOB read issue in the libsaacextractor.so library before SMR Sep-2021 Release 1, permitting attackers to conduct remote DoS attacks by using a specially crafted aac file.
Affected Systems and Versions
Samsung Mobile Devices with versions O(8.1), P(9.0), Q(10.0), R(11.0) are impacted when running software versions prior to SMR Sep-2021 Release 1.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating a crafted aac file to trigger the OOB read vulnerability in the libsaacextractor.so library, potentially causing remote DoS incidents.
Mitigation and Prevention
Addressing CVE-2021-25454 involves taking immediate steps, adopting long-term security practices, and ensuring timely patching and updates.
Immediate Steps to Take
Users should update their Samsung Mobile Devices to SMR Sep-2021 Release 1 or later to mitigate the risk of exploitation through the libsaacextractor.so library.
Long-Term Security Practices
Enforcing secure coding practices, software testing, and monitoring can enhance resilience against similar vulnerabilities in the future.
Patching and Updates
Regularly applying security patches and keeping systems up-to-date with the latest releases is crucial for safeguarding against known vulnerabilities like CVE-2021-25454.