CVE-2021-40052:Incorrect buffer size calculation vulnerability in Huawei video framework affecting system availability.

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Description Preview

A vulnerability has been identified in Huawei's video framework (CVE-2021-40052) involving incorrect buffer size calculation (CWE-131). When exploited, this vulnerability can affect system availability, potentially leading to denial of service conditions. The issue occurs when the video framework incorrectly calculates the size of buffers needed for operations, which could result in buffer overflow, memory corruption, or application crashes.

Overview

This vulnerability (CVE-2021-40052) is classified as an incorrect buffer size calculation issue (CWE-131) affecting the video framework in certain Huawei products. The flaw stems from improper calculation of buffer sizes during video processing operations. When the system allocates insufficient memory for a buffer, it can lead to memory corruption, crashes, or denial of service conditions. The vulnerability primarily impacts the availability of the affected system rather than confidentiality or integrity. Attackers could potentially exploit this issue to cause application or system crashes, disrupting normal device operation.

Remediation

Users should update their Huawei devices to the latest available firmware version as specified in the Huawei security bulletins. Huawei has released patches to address this vulnerability in their security updates. To mitigate this issue:

  1. Check your device's current software version
  2. Install all available security updates from Huawei
  3. Enable automatic updates where possible
  4. Follow the specific update instructions provided in the Huawei security bulletins referenced below
  5. If updates are not immediately available, limit the use of video processing features until patching is possible

References

  1. Huawei Consumer Security Bulletin (March 2022): https://consumer.huawei.com/en/support/bulletin/2022/3/
  2. HarmonyOS Security Bulletins (August 2022): https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202208-0000001363876177
  3. Common Weakness Enumeration (CWE-131): Incorrect Calculation of Buffer Size

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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