CVE-2023-42751 Explained : Impact and Mitigation
Learn about CVE-2023-42751, an out-of-bounds write vulnerability in the gnss service of Unisoc devices, potentially leading to denial of service. Read for impact, technical details, and mitigation steps.
This article provides an overview of CVE-2023-42751, detailing the vulnerability, its impact, technical details, and mitigation strategies.
Understanding CVE-2023-42751
CVE-2023-42751 is a vulnerability identified in the gnss service of Unisoc devices, potentially leading to a denial of service condition.
What is CVE-2023-42751?
The vulnerability involves an out-of-bounds write issue in the gnss service, triggered by a lack of proper bounds checking. Attackers could exploit this to cause a denial of service, requiring system execution privileges.
The Impact of CVE-2023-42751
If successfully exploited, CVE-2023-42751 could result in a local denial of service on affected Unisoc devices. This could disrupt normal device operation and impact user experience.
Technical Details of CVE-2023-42751
This section delves into the specific technical aspects of the CVE-2023-42751 vulnerability.
Vulnerability Description
The vulnerability in the gnss service of Unisoc devices is primarily due to a missing bounds check, allowing an attacker to perform an out-of-bounds write operation leading to a denial of service.
Affected Systems and Versions
Unisoc devices utilizing the SC7731E, SC9832E, SC9863A, T310, T606, T612, T616, T610, T618, T760, T770, T820, and S8000 processors running Android 11, 12, or 13 are vulnerable to CVE-2023-42751.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted malicious requests to the gnss service, triggering the out-of-bounds write operation and causing a denial of service.
Mitigation and Prevention
In this section, we discuss the steps that users and organizations can take to mitigate the risks associated with CVE-2023-42751.
Immediate Steps to Take
Users are advised to update their Unisoc devices to the latest firmware or security patch provided by Unisoc (Shanghai) Technologies Co., Ltd. This update should include a fix for the gnss service vulnerability.
Long-Term Security Practices
To enhance security posture, users should follow best practices such as avoiding untrusted sources, keeping devices up to date, and implementing security solutions like firewalls and intrusion detection systems.
Patching and Updates
Regularly check for security updates and patches released by Unisoc for the affected devices. Promptly applying these updates can help protect devices from known vulnerabilities.