CVE-2021-0504 : Exploit Details and Defense Strategies
Learn about CVE-2021-0504 impacting Android-11, allowing remote information disclosure over Bluetooth. Understand the impact, technical details, and mitigation steps.
Android-11 is impacted by CVE-2021-0504, a vulnerability that exists in avrc_pars_browse_rsp of avrc_pars_ct.cc. This flaw could result in an out-of-bounds read, leading to potential remote information disclosure over Bluetooth without the need for additional privileges or user interaction.
Understanding CVE-2021-0504
This section dives deeper into the nature and implications of the CVE-2021-0504 vulnerability.
What is CVE-2021-0504?
The vulnerability in avrc_pars_browse_rsp of avrc_pars_ct.cc could allow an attacker to perform a remote information disclosure attack over Bluetooth on devices running Android-11 without any extra permissions. The issue arises from a missing bounds check.
The Impact of CVE-2021-0504
The impact of this vulnerability is the potential exposure of sensitive information to unauthorized parties, compromising user data and privacy.
Technical Details of CVE-2021-0504
Explore the technical aspects of CVE-2021-0504, including the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The flaw in avrc_pars_browse_rsp of avrc_pars_ct.cc leads to an out-of-bounds read due to the absence of proper boundary checks, enabling a malicious actor to extract data remotely.
Affected Systems and Versions
CVE-2021-0504 affects devices running Android-11, making them susceptible to the outlined information disclosure threat over Bluetooth connections.
Exploitation Mechanism
The exploitation of this vulnerability requires no user interaction and can be carried out over Bluetooth, emphasizing the need for timely mitigation.
Mitigation and Prevention
Learn about the necessary steps to mitigate the risks associated with CVE-2021-0504 and prevent any potential exploits.
Immediate Steps to Take
Users are advised to stay vigilant for security updates and patches from the device manufacturer. Avoiding unsecured Bluetooth connections is also recommended.
Long-Term Security Practices
Incorporating secure coding practices, regular security audits, and staying informed about security bulletins can enhance long-term security posture.
Patching and Updates
It is crucial for users to promptly apply security patches provided by the Android device manufacturer to address CVE-2021-0504 and safeguard against exploitation.