CVE-2023-20982 : Vulnerability Insights and Analysis
Learn about CVE-2023-20982 affecting Android Bluetooth. Risk of data disclosure through out-of-bounds read exploit. Mitigation steps included.
This CVE record outlines a security vulnerability identified as CVE-2023-20982, which was published on March 24, 2023, by Google Android. The vulnerability involves a potential out-of-bounds read in the btm_read_tx_power_complete function of the btm_acl.cc file, which could result in local information disclosure within the Bluetooth server with the requirement of System execution privileges. The affected product is Android, specifically version Android-13.
Understanding CVE-2023-20982
This section provides an overview of the nature and impact of the CVE-2023-20982 vulnerability.
What is CVE-2023-20982?
CVE-2023-20982 is a security vulnerability found in the Android operating system, impacting the Bluetooth functionality. It stems from a missing bounds check in the btm_read_tx_power_complete function, which can allow unauthorized access to sensitive information stored on the system.
The Impact of CVE-2023-20982
The exploitation of CVE-2023-20982 could lead to local information disclosure within the Bluetooth server. Attackers with System execution privileges can potentially access confidential data without requiring user interaction, posing a significant risk to the security and privacy of affected systems.
Technical Details of CVE-2023-20982
Delving into the specific technical aspects of the CVE-2023-20982 vulnerability and how it can be exploited.
Vulnerability Description
The vulnerability arises from an out-of-bounds read in the btm_read_tx_power_complete function, allowing attackers to read beyond the allocated memory space and access sensitive information. This could result in the exposure of confidential data stored on the system.
Affected Systems and Versions
The issue affects Android devices running version Android-13. Systems with this specific configuration are vulnerable to exploitation of the CVE-2023-20982 vulnerability, potentially leading to information disclosure.
Exploitation Mechanism
To exploit CVE-2023-20982, an attacker would need to leverage the missing bounds check in the btm_read_tx_power_complete function to read unauthorized memory locations. By exploiting this vulnerability, the attacker can gain access to sensitive information stored on the affected system.
Mitigation and Prevention
Outlined below are strategies to mitigate the risks associated with CVE-2023-20982 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to apply security updates and patches provided by Google Android to address the CVE-2023-20982 vulnerability promptly. It is crucial to keep the system up to date with the latest security enhancements to mitigate the risk of information disclosure.
Long-Term Security Practices
Adopting robust security practices, such as regular security audits, network segmentation, and access control measures, can enhance overall system resilience against potential vulnerabilities like CVE-2023-20982. Implementing strong authentication mechanisms and monitoring system activities can also help detect and prevent unauthorized access attempts.
Patching and Updates
Ensuring timely installation of security patches released by Google Android is essential to address known vulnerabilities like CVE-2023-20982. By staying vigilant and proactive in applying updates, users can fortify their systems against security threats and maintain a secure computing environment.