CVE-2022-38155 : What You Need to Know
Learn about CVE-2022-38155, a Samsung mTower vulnerability allowing excessive memory allocation by a trusted application, leading to TEE kernel crashes. Find mitigation steps here.
TEE_Malloc in Samsung mTower through 0.3.0 allows a trusted application to achieve Excessive Memory Allocation via a large len value, leading to a Numaker-PFM-M2351 TEE kernel crash.
Understanding CVE-2022-38155
This CVE refers to a vulnerability in Samsung mTower that enables a trusted application to exploit memory allocation, resulting in a TEE kernel crash.
What is CVE-2022-38155?
CVE-2022-38155 involves TEE_Malloc in Samsung mTower through version 0.3.0, allowing specific applications to trigger a TEE kernel crash by manipulating memory allocation.
The Impact of CVE-2022-38155
The impact of this vulnerability is significant as it can lead to system instability, denial of service, or potential exploitation by attackers targeting the TEE environment.
Technical Details of CVE-2022-38155
In this section, we delve into the specifics of the vulnerability to provide a clearer understanding of its nature and implications.
Vulnerability Description
The vulnerability lies in the capability of a trusted application to trigger excessive memory allocation within the TEE environment, causing a kernel crash.
Affected Systems and Versions
Samsung mTower versions up to 0.3.0 are susceptible to this vulnerability, impacting the integrity and stability of the TEE functionality.
Exploitation Mechanism
By leveraging a large len value, an attacker can exploit TEE_Malloc in Samsung mTower, leading to the TEE kernel crash and potential system compromise.
Mitigation and Prevention
To address and mitigate the risks associated with CVE-2022-38155, certain measures and practices can be implemented.
Immediate Steps to Take
It is crucial to update Samsung mTower to the latest secure version to prevent exploitation by malicious actors and enhance system resilience.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security assessments, and ensuring timely updates can bolster the overall security posture against similar vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by Samsung for mTower to address CVE-2022-38155 and other potential vulnerabilities effectively.