CVE-2021-0707 : Vulnerability Insights and Analysis
Learn about CVE-2021-0707 affecting Android kernel, enabling local privilege escalation without user interaction. Mitigation steps and prevention methods included.
This CVE-2021-0707 pertains to a vulnerability found in dma_buf_release of dma-buf.c, affecting Android kernel versions. The issue could potentially result in memory corruption due to a use-after-free scenario, leading to a local privilege escalation without requiring additional execution privileges. No user interaction is necessary for exploitation.
Understanding CVE-2021-0707
This section provides insights into the nature and impact of CVE-2021-0707.
What is CVE-2021-0707?
The vulnerability in dma_buf_release of dma-buf.c poses a risk of memory corruption, allowing attackers to exploit a use-after-free condition. This flaw enables local attackers to escalate their privileges without the need for additional permissions.
The Impact of CVE-2021-0707
The impact of this vulnerability includes the potential for local attackers to gain escalated privileges on the affected systems without requiring any special user interactions.
Technical Details of CVE-2021-0707
Delve deeper into the technical aspects of CVE-2021-0707 to understand its implications.
Vulnerability Description
The vulnerability lies in dma_buf_release of dma-buf.c, which could result in memory corruption due to a use-after-free scenario, opening up the possibility of local privilege escalation.
Affected Systems and Versions
The affected systems include products running on the Android platform with Android kernel versions being susceptible to exploitation.
Exploitation Mechanism
The exploitation of this vulnerability involves triggering the use-after-free condition in dma_buf_release to manipulate memory and gain local privilege escalation.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2021-0707 and prevent potential exploitation.
Immediate Steps to Take
Users and administrators should apply relevant security patches provided by the vendor to eliminate this vulnerability and prevent any malicious activities.
Long-Term Security Practices
Implementing robust security practices, such as regular system updates, monitoring for unusual activities, and restricting access permissions, can enhance the overall security posture.
Patching and Updates
Regularly check for security advisories and updates from the vendor to ensure timely application of patches that address known vulnerabilities.