CVE-2021-0455 : What You Need to Know
Learn about CVE-2021-0455 impacting Android systems. Find out how the Citadel chip firmware vulnerability could lead to local privilege escalation without user interaction.
Citadel chip firmware in Android has a vulnerability that could allow an attacker to perform an out-of-bounds write. This could lead to local escalation of privilege, requiring system execution privileges with no user interaction.
Understanding CVE-2021-0455
This CVE affects Android devices due to a missing bounds check in the Citadel chip firmware, potentially leading to privilege escalation.
What is CVE-2021-0455?
CVE-2021-0455 is a vulnerability in the Android system that allows for potential out-of-bounds write, leading to local privilege escalation.
The Impact of CVE-2021-0455
The vulnerability could be exploited by attackers to gain system execution privileges without the need for user interaction, posing a significant security risk.
Technical Details of CVE-2021-0455
The technical details include the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
In the Citadel chip firmware, the missing bounds check creates an opportunity for malicious actors to perform out-of-bounds writes.
Affected Systems and Versions
The vulnerability affects Android devices using the Android kernel version of the Citadel chip firmware.
Exploitation Mechanism
Attackers can exploit this vulnerability to achieve local escalation of privilege without requiring user interaction.
Mitigation and Prevention
It is crucial to take immediate steps to address the CVE and implement long-term security practices to prevent similar vulnerabilities in the future.
Immediate Steps to Take
Users and administrators should apply relevant security patches and updates provided by Android to mitigate the risk associated with CVE-2021-0455.
Long-Term Security Practices
Regular security monitoring, threat assessments, and secure coding practices can strengthen the overall security posture of Android devices.
Patching and Updates
Ensure timely installation of security patches and firmware updates from Android to address vulnerabilities and enhance device security.