CVE-2021-22415:Incorrect Calculation of Buffer Size Vulnerability in Huawei Smartphones (CVE-2021-22415)

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A vulnerability has been identified in Huawei Smartphones where an incorrect calculation of buffer size (CWE-131) could lead to kernel exceptions. This vulnerability allows an attacker to potentially cause system instability or crashes through improper buffer size calculations in the kernel code.

Overview

The vulnerability (CVE-2021-22415) affects certain Huawei Smartphone models and is classified as an Incorrect Calculation of Buffer Size vulnerability (CWE-131). When exploited, this vulnerability can cause kernel exceptions with the code, potentially resulting in system crashes, denial of service conditions, or unpredictable system behavior. The issue stems from the kernel not properly calculating the size of a buffer before performing operations, which can lead to buffer overflows or other memory-related issues.

Remediation

Users of affected Huawei Smartphones should:

  1. Update their devices to the latest firmware version as provided by Huawei
  2. Enable automatic updates to ensure timely application of security patches
  3. Monitor Huawei's security bulletins for additional information about this vulnerability
  4. Follow best security practices such as avoiding installation of applications from untrusted sources
  5. Refer to the Huawei Consumer Security Bulletin (June 2021) for specific patch information and affected models

References

  1. Huawei Consumer Security Bulletin (June 2021): https://consumer.huawei.com/en/support/bulletin/2021/6/
  2. Common Weakness Enumeration (CWE-131): https://cwe.mitre.org/data/definitions/131.html
  3. MITRE CVE Entry: CVE-2021-22415

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Accommodation & Food Services
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  5. Construction
    Construction
  6. Educational Services
    Educational Services
  7. Finance and Insurance
    Finance and Insurance
  8. Health Care & Social Assistance
    Health Care & Social Assistance
  9. Information
    Information
  10. Management of Companies & Enterprises
    Management of Companies & Enterprises
  11. Manufacturing
    Manufacturing
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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