CVE-2023-21106 Explained : Impact and Mitigation

This CVE record details a vulnerability found in the Android operating system that could potentially allow for local escalation of privilege without the need for additional execution privileges. The vulnerability specifically exists in the adreno_set_param function of adreno_gpu.c, leading to a possible memory corruption due to a double free.

Understanding CVE-2023-21106

This section delves into the specifics of CVE-2023-21106, shedding light on what the vulnerability entails and its potential impact.

What is CVE-2023-21106?

CVE-2023-21106 is a vulnerability within the Android operating system's adreno_set_param function of the adreno_gpu.c file. The issue arises from a double free scenario that could result in memory corruption, ultimately enabling a local escalation of privilege. Notably, exploitation does not require user interaction.

The Impact of CVE-2023-21106

The impact of this vulnerability lies in the ability for an attacker to escalate privileges locally without needing any additional execution privileges. By exploiting the memory corruption issue, an attacker could potentially gain elevated access within the system.

Technical Details of CVE-2023-21106

This section provides a more in-depth look at the technical aspects of CVE-2023-21106, outlining the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability originates from a double free scenario in the adreno_set_param function of adreno_gpu.c, ultimately leading to memory corruption within the Android operating system.

Affected Systems and Versions

The affected system in this case is Android, specifically the Android kernel. The vulnerability impacts systems running the Android kernel version where the adreno_set_param function is present.

Exploitation Mechanism

Exploiting CVE-2023-21106 does not require any user interaction. Attackers can potentially leverage the double free scenario in adreno_set_param to manipulate memory and escalate their privileges locally within the system.

Mitigation and Prevention

In addressing CVE-2023-21106, it is crucial to take immediate steps to mitigate the risk posed by the vulnerability. Long-term security practices and the importance of patching and updates play a significant role in enhancing system security.

Immediate Steps to Take

Organizations and users are advised to apply relevant patches and updates provided by the vendor to address CVE-2023-21106 promptly. By addressing the vulnerability at the root level, the risk of exploitation can be mitigated.

Long-Term Security Practices

Implementing robust security practices such as regular security assessments, monitoring, and timely patch management can help fortify systems against potential vulnerabilities like CVE-2023-21106. By emphasizing proactive security measures, organizations can enhance their overall security posture.

Patching and Updates

Vendors often release patches and updates to address known vulnerabilities like CVE-2023-21106. It is crucial for users to stay informed about security bulletins and promptly apply relevant patches to ensure their systems are protected against potential threats. Regularly updating software and systems is key to maintaining a secure environment and minimizing the risk of exploitation.