CVE-2021-22455 : What You Need to Know
Learn about CVE-2021-22455, a critical Integer Overflow vulnerability in HarmonyOS 2.0 that enables local attackers to manipulate memory allocation. Find mitigation steps and long-term security practices.
A component of the HarmonyOS has an Integer Overflow or Wraparound vulnerability that may be exploited by local attackers to manipulate memory allocation.
Understanding CVE-2021-22455
This CVE identifies a critical vulnerability in the HarmonyOS affecting version 2.0, allowing local attackers to exploit an Integer Overflow or Wraparound issue.
What is CVE-2021-22455?
CVE-2021-22455 is a security vulnerability present in the HarmonyOS operating system, which could be abused by local attackers to manipulate memory usage through an Integer Overflow or Wraparound scenario.
The Impact of CVE-2021-22455
The identified vulnerability poses a significant threat as it enables attackers to disrupt the usual memory allocation processes within the HarmonyOS, potentially leading to system instability and unauthorized access.
Technical Details of CVE-2021-22455
This section provides a detailed overview of the vulnerability's technical aspects.
Vulnerability Description
A component in HarmonyOS suffers from an Integer Overflow or Wraparound flaw that can be leveraged by local attackers to interfere with memory management, causing unreleased memory utilization.
Affected Systems and Versions
HarmonyOS version 2.0 is confirmed to be impacted by this vulnerability, potentially affecting devices running this specific OS version.
Exploitation Mechanism
Local attackers can exploit this vulnerability by triggering an Integer Overflow or Wraparound scenario, manipulating memory usage and disrupting the expected memory release mechanisms.
Mitigation and Prevention
Protective measures and strategies to mitigate the risks associated with CVE-2021-22455.
Immediate Steps to Take
Immediately apply security patches provided by Huawei to address the identified vulnerability and prevent unauthorized exploitation.
Long-Term Security Practices
Regularly update HarmonyOS to the latest version, implement robust security protocols, and restrict access to vulnerable systems to enhance overall cybersecurity.
Patching and Updates
Stay informed about security advisories from Huawei regarding HarmonyOS and promptly install recommended patches and updates to safeguard against potential threats.