CVE-2023-20983 : Security Advisory and Response

This CVE-2023-20983 was published on March 24, 2023, by Google Android. It involves a vulnerability in the btm_ble_rand_enc_complete function of btm_ble.cc, which can result in an out-of-bounds read and potential local information disclosure. The exploit may require system execution privileges and does not necessarily need user interaction for activation.

Understanding CVE-2023-20983

This section will delve into what CVE-2023-20983 entails and its potential impact on affected systems.

What is CVE-2023-20983?

The CVE-2023-20983 vulnerability resides in the btm_ble_rand_enc_complete function of btm_ble.cc. It poses a risk of an out-of-bounds read due to missing bounds checks, which could potentially lead to local information disclosure. The exploitation of this vulnerability may demand system execution privileges while not requiring user interaction.

The Impact of CVE-2023-20983

The impact of CVE-2023-20983 is the potential for local information disclosure on affected systems running Android-13. This disclosure can occur without the need for user interaction, emphasizing the severity of the vulnerability.

Technical Details of CVE-2023-20983

In this section, we will explore the specifics surrounding the vulnerability, including its description, affected systems, and the mechanism of exploitation.

Vulnerability Description

The vulnerability in btm_ble_rand_enc_complete of btm_ble.cc allows for an out-of-bounds read due to a lack of proper bounds checking. This oversight can be exploited to disclose local information without requiring user interaction, making it a critical security concern.

Affected Systems and Versions

The vulnerability impacts products running Android, specifically version Android-13. Systems operating on this version are susceptible to the out-of-bounds read and potential information disclosure associated with CVE-2023-20983.

Exploitation Mechanism

To exploit CVE-2023-20983, an attacker would need system execution privileges. By leveraging the out-of-bounds read vulnerability in the btm_ble_rand_enc_complete function, the attacker could potentially gain access to local information without the necessity of user interaction.

Mitigation and Prevention

This section will focus on the steps that can be taken to mitigate the risks associated with CVE-2023-20983 and prevent potential exploitation.

Immediate Steps to Take

To address CVE-2023-20983, users and system administrators are advised to apply security patches and updates provided by the vendor promptly. Additionally, monitoring system activities for any suspicious behavior can help detect potential exploitation attempts.

Long-Term Security Practices

Implementing robust security protocols, such as regular security assessments, network monitoring, and user awareness training, can bolster the overall security posture of systems and mitigate the risks of similar vulnerabilities in the future.

Patching and Updates

Ensuring that systems are up to date with the latest security patches and updates is crucial in mitigating the impact of CVE-2023-20983. Regularly checking for and applying patches released by the vendor can help address known vulnerabilities and enhance the overall security of the system.