CVE-2021-0624 : Exploit Details and Defense Strategies
Learn about CVE-2021-0624, a vulnerability in MediaTek chips running Android 10.0 and 11.0. Understand the impact, affected systems, exploitation, and mitigation steps.
A heap buffer overflow in the flv extractor of certain MediaTek chips running Android 10.0 and 11.0 may allow for local information disclosure without requiring additional privileges or user interaction.
Understanding CVE-2021-0624
This CVE involves a potential out-of-bounds read vulnerability in the flv extractor component of specific MediaTek chips, posing a risk of local information exposure.
What is CVE-2021-0624?
The vulnerability identified as CVE-2021-0624 stems from a heap buffer overflow issue within the flv extractor, which could result in local information disclosure. The exploitation of this vulnerability does not necessitate user interaction.
The Impact of CVE-2021-0624
If exploited, CVE-2021-0624 could lead to local information disclosure, which may compromise sensitive data stored on devices utilizing the affected MediaTek chips and Android 10.0 or 11.0.
Technical Details of CVE-2021-0624
This section provides insights into the specifics of the vulnerability affecting the MediaTek chips and the versions of the Android operating system.
Vulnerability Description
The vulnerability involves a heap buffer overflow within the flv extractor, potentially leading to out-of-bounds read and local information disclosure.
Affected Systems and Versions
MediaTek chips including MT6580, MT6735, MT6757, and more, running Android 10.0 and 11.0 are impacted by this vulnerability.
Exploitation Mechanism
The flaw can be exploited without the need for user interaction, making it possible for threat actors to gain access to local information through the heap buffer overflow.
Mitigation and Prevention
In response to CVE-2021-0624, immediate steps and long-term security practices can help safeguard devices utilizing the impacted MediaTek chips and Android versions.
Immediate Steps to Take
Users and administrators should apply patches promptly, such as the provided Patch ID: ALPS05594988, to mitigate the risk of local information exposure.
Long-Term Security Practices
Regularly updating devices, implementing security best practices, and staying informed about potential vulnerabilities can enhance the overall security posture.
Patching and Updates
Ensure that devices are updated with the latest security patches and firmware releases to address known vulnerabilities, including those related to CVE-2021-0624.