CVE-2021-39977 : Vulnerability Insights and Analysis
Explore the NULL Pointer Dereference vulnerability (CVE-2021-39977) in HarmonyOS. Learn about impacts, affected systems, exploitation, and mitigation steps.
This CVE article provides details about a NULL Pointer Dereference vulnerability in the HwNearbyMain module of HarmonyOS by Huawei that could result in process restart.
Understanding CVE-2021-39977
This section delves into the specifics of the identified vulnerability.
What is CVE-2021-39977?
The HwNearbyMain module in HarmonyOS by Huawei is susceptible to a NULL Pointer Dereference flaw. Exploiting this vulnerability could lead to a process restart.
The Impact of CVE-2021-39977
The exploitation of CVE-2021-39977 can result in a process restart, affecting the stability and performance of the HarmonyOS system.
Technical Details of CVE-2021-39977
Explore the technical aspects of the CVE in this section.
Vulnerability Description
The HwNearbyMain module in HarmonyOS has a NULL Pointer Dereference vulnerability, which, if successfully exploited, can trigger a process restart.
Affected Systems and Versions
- Affected Product: HarmonyOS
- Vendor: Huawei
- Affected Version: 2.0
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to cause a NULL Pointer Dereference, leading to a process restart.
Mitigation and Prevention
Learn about the measures to mitigate the risks associated with CVE-2021-39977.
Immediate Steps to Take
- Users are advised to apply security patches provided by Huawei promptly.
- Monitor official channels for updates and advisories regarding this vulnerability.
Long-Term Security Practices
- Employ robust security measures to prevent unauthorized access to systems.
- Conduct regular security audits to identify and address vulnerabilities proactively.
Patching and Updates
- Huawei may release patches to address CVE-2021-39977; users should ensure timely installation of these updates.