CVE-2022-39116 Explained : Impact and Mitigation
Learn about CVE-2022-39116, a vulnerability in Unisoc chipset drivers that could lead to local denial of service in the kernel. Find out affected systems and recommended mitigation strategies.
This article provides detailed information about CVE-2022-39116, a vulnerability identified in the sprd_sysdump driver that could result in a local denial of service in the kernel.
Understanding CVE-2022-39116
This section delves into the nature of the vulnerability and its potential impact.
What is CVE-2022-39116?
The CVE-2022-39116 vulnerability is associated with an out-of-bounds write issue in the sprd_sysdump driver, primarily caused by a missing bounds check. Exploiting this vulnerability could allow an attacker to trigger a denial of service condition within the kernel.
The Impact of CVE-2022-39116
The impact of this vulnerability stems from the ability of a local attacker to exploit the flaw, resulting in a denial of service situation. It can disrupt normal system operations and potentially lead to stability issues.
Technical Details of CVE-2022-39116
This section outlines specific technical aspects of the CVE-2022-39116 vulnerability.
Vulnerability Description
The vulnerability originates in the sprd_sysdump driver and is characterized by an out-of-bounds write scenario due to the absence of proper bounds validation. This flaw could be leveraged by a malicious actor to disrupt kernel operations.
Affected Systems and Versions
The vulnerability impacts systems utilizing the Unisoc (Shanghai) Technologies Co., Ltd. chipset models SC9863A, SC9832E, SC7731E, T610, T310, T606, T760, T610, T618, T606, T612, T616, T760, T770, T820, and S8000 running Android 10, 11, or 12.
Exploitation Mechanism
To exploit CVE-2022-39116, an attacker would need local access to the targeted system and the capability to trigger the out-of-bounds write vulnerability within the sprd_sysdump driver.
Mitigation and Prevention
This section offers guidance on mitigating and preventing the exploitation of CVE-2022-39116.
Immediate Steps to Take
It is recommended to implement security patches provided by the vendor to address the vulnerability. Additionally, restricting access to vulnerable systems can help prevent exploitation.
Long-Term Security Practices
Developing and adhering to robust security practices, such as regular software updates, security audits, and user access controls, can enhance overall system security.
Patching and Updates
Regularly check for and apply security patches released by Unisoc (Shanghai) Technologies Co., Ltd. to ensure that systems are protected against known vulnerabilities.