CVE-2021-0936 Explained : Impact and Mitigation
Learn about CVE-2021-0936, a memory corruption vulnerability in Android's kernel allowing local escalation of privilege. Find out the impact, affected systems, and mitigation steps.
This CVE-2021-0936 involves a possible memory corruption vulnerability in Android's kernel that could allow an attacker to achieve local escalation of privilege without requiring additional execution privileges. The issue exists in the acc_read function of f_accessory.c, leading to a use after free scenario.
Understanding CVE-2021-0936
This section provides insights into the nature of the vulnerability and its impact.
What is CVE-2021-0936?
The vulnerability lies in the acc_read function of f_accessory.c within the Android kernel. It could be exploited by an attacker to locally escalate privileges without the need for user interaction.
The Impact of CVE-2021-0936
If successfully exploited, this vulnerability could enable an attacker to gain escalated privileges on the affected system, potentially leading to further malicious activities.
Technical Details of CVE-2021-0936
Explore the technical specifics of the vulnerability in this section.
Vulnerability Description
The vulnerability arises from a use after free scenario in the acc_read function of f_accessory.c within the Android kernel, creating a pathway for memory corruption.
Affected Systems and Versions
The affected product is Android, specifically the Android kernel. Systems running this configuration are vulnerable to exploitation.
Exploitation Mechanism
The vulnerability can be exploited to achieve local escalation of privilege, without requiring additional execution privileges, thereby posing a significant security risk.
Mitigation and Prevention
Discover the necessary steps to mitigate and prevent the exploitation of CVE-2021-0936.
Immediate Steps to Take
It is essential to apply relevant security patches and updates to the affected systems as soon as they are made available by the vendor to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing robust security measures and best practices such as regular security audits and updates can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly check for security bulletins and updates from Android to ensure that the latest patches are applied promptly to address known vulnerabilities.