CVE-2021-0966 Explained : Impact and Mitigation
Learn about CVE-2021-0966 affecting Android-11 and Android-12. Uncover how uninitialized data in crafted parcelable code leads to local information disclosure via Binder transactions.
Android devices running on versions Android-11 and Android-12 are susceptible to an information disclosure vulnerability. Due to uninitialized data in crafted parcelable code, attackers can exploit Binder transactions to expose uninitialized memory, potentially leading to local information disclosure.
Understanding CVE-2021-0966
This CVE pertains to an information disclosure vulnerability found in Android devices, specifically affecting versions Android-11 and Android-12.
What is CVE-2021-0966?
The CVE-2021-0966 vulnerability arises from uninitialized data in crafted parcelable code, enabling attackers to uncover uninitialized memory in a target process. Exploiting this flaw can result in local information disclosure during Binder transactions, all without requiring additional execution privileges or user interaction.
The Impact of CVE-2021-0966
The impact of this vulnerability is the potential exposure of uninitialized memory in affected Android devices, leading to local information disclosure across Binder transactions.
Technical Details of CVE-2021-0966
This section will provide more insight into the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability is rooted in code generated by BuildParcelFields of generate_cpp.cpp, allowing for the exposure of uninitialized memory through crafted parcelable code.
Affected Systems and Versions
Android devices running on Android-11 and Android-12 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this flaw by leveraging crafted parcelable code to reveal uninitialized memory during Binder transactions.
Mitigation and Prevention
Learn how to address and prevent the CVE-2021-0966 vulnerability to secure Android devices.
Immediate Steps to Take
It is essential to apply relevant patches and updates promptly to mitigate the risk of information disclosure on affected systems.
Long-Term Security Practices
Incorporating robust security practices can enhance the overall resilience of Android devices against similar vulnerabilities in the future.
Patching and Updates
Regularly monitor and apply security patches and updates provided by Google to address known vulnerabilities and bolster system security.