CVE-2021-29363:Buffer overflow vulnerability in Irfanview 4.57 when processing RLE files allows arbitrary code execution.

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Description Preview

A buffer overflow vulnerability has been identified in Irfanview 4.57, specifically in the FORMATS!ReadRAS_W+0xa74 function. This vulnerability occurs when the application processes maliciously crafted RLE (Run-Length Encoding) files. An attacker can exploit this vulnerability to cause a buffer overflow condition, potentially leading to arbitrary code execution in the context of the current user. The vulnerability is classified as CWE-787 (Out-of-bounds Write).

Overview

Irfanview is a popular image viewer and editor for Windows. The vulnerability exists in version 4.57 and potentially earlier versions. When processing specially crafted RLE files, the application fails to properly validate input data, leading to a buffer overflow condition in the FORMATS!ReadRAS_W function. This allows attackers to potentially execute arbitrary code on the affected system. The vulnerability requires user interaction, as the victim must open a malicious RLE file with the affected Irfanview version.

Remediation

Users should upgrade to the latest version of Irfanview as soon as possible. If upgrading is not immediately possible, users should exercise caution when opening RLE files from untrusted sources. Consider using alternative image viewing software until the vulnerability is patched. System administrators should implement application control policies to prevent the execution of vulnerable Irfanview versions in enterprise environments.

References

  • CVE ID: CVE-2021-29363
  • CWE ID: CWE-787 (Out-of-bounds Write)
  • Detailed research information: https://github.com/moshekaplan/Research/tree/main/IrfanView
  • MITRE CVE entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29363

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

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