CVE-2021-46868 : Security Advisory and Response
Learn about the CVE-2021-46868 vulnerability in Huawei's HarmonyOS and EMUI, allowing for out-of-bounds memory access. Discover impact, affected versions, and mitigation steps.
A vulnerability in the HW_KEYMASTER module of Huawei's HarmonyOS and EMUI could lead to out-of-bounds memory access.
Understanding CVE-2021-46868
What is CVE-2021-46868?
The HW_KEYMASTER module has a problem with releasing memory, potentially allowing attackers to access out-of-bounds memory, leading to a security risk.
The Impact of CVE-2021-46868
Exploiting this vulnerability could result in unauthorized access to sensitive information, system crash, or even potential execution of arbitrary code.
Technical Details of CVE-2021-46868
Vulnerability Description
The vulnerability lies in the HW_KEYMASTER module, which fails to release memory properly, allowing for the exploitation leading to out-of-bounds memory access.
Affected Systems and Versions
- Vendor: Huawei
- Affected Products and Versions:
- HarmonyOS 2.0
- EMUI 12.0.0
Exploitation Mechanism
Attackers could exploit this vulnerability by crafting malicious inputs to trigger the out-of-bounds memory access, potentially gaining unauthorized access.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security patches provided by Huawei immediately.
- Restrict network access to vulnerable systems.
- Monitor for any unusual system behavior that could indicate exploitation.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Conduct security training for employees to recognize and report suspicious activities.
Patching and Updates
- Check Huawei's official security bulletins and update mechanisms regularly.