Learn about CVE-2023-21147, an Android privilege escalation flaw identified on June 28, 2023. Understand the impact, technical details, and mitigation strategies.
This CVE record was published on June 28, 2023, by Google for an issue identified in the Android operating system. The vulnerability, categorized as an elevation of privilege, could potentially allow local attackers to escalate their privileges without requiring additional execution permissions or user interaction.
Understanding CVE-2023-21147
This section will delve into what CVE-2023-21147 is, the impact it poses, the technical details surrounding the vulnerability, as well as mitigation and prevention strategies.
What is CVE-2023-21147?
CVE-2023-21147 pertains to a specific flaw present in the lwis_i2c_device_disable function within lwis_device_i2c.c. The vulnerability arises due to a logic error in the code, which could be exploited by local attackers to gain elevated privileges on the system.
The Impact of CVE-2023-21147
The impact of this CVE lies in the potential for a local attacker to exploit the vulnerability and escalate their privileges within the Android operating system. Such escalation could lead to unauthorized access to sensitive information or the ability to perform malicious actions on the affected system.
Technical Details of CVE-2023-21147
In this section, we will explore the vulnerability description, the systems and versions affected, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability in lwis_i2c_device_disable of lwis_device_i2c.c can result in a use-after-free scenario, where a logic error in the code can be manipulated by attackers to gain elevated privileges on the system.
Affected Systems and Versions
The affected product in this case is Android, specifically the Android kernel version. Systems running the impacted Android kernel version are susceptible to exploitation of this vulnerability.
Exploitation Mechanism
The exploitation of CVE-2023-21147 involves leveraging the logic error present in the lwis_i2c_device_disable function to carry out a local escalation of privilege attack within the Android operating system.
Mitigation and Prevention
Outlined below are steps that can be taken to mitigate the risks associated with CVE-2023-21147 and prevent potential exploitation.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates