CVE-2023-23462:Integer overflow vulnerability in Libpeconv library before commit 75b1565 (November 30, 2022).

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Libpeconv, a library for loading and manipulating PE files, contains an integer overflow vulnerability in versions prior to commit 75b1565 from November 30, 2022. This vulnerability is classified as CWE-190 (Integer Overflow or Wraparound) and could potentially allow attackers to cause unexpected behavior, memory corruption, or execute arbitrary code by manipulating input that triggers arithmetic operations resulting in values that exceed the maximum size of the integer type.

Overview

The vulnerability (CVE-2023-23462) affects the Libpeconv library, which is used for PE (Portable Executable) file manipulation. The integer overflow occurs when the library performs calculations involving integers without proper bounds checking, potentially leading to buffer overflows or other memory safety issues. When integer operations result in a value larger than what can be stored in the allocated memory space, it can wrap around to an incorrect value, causing unexpected behavior or security issues. This vulnerability could allow attackers to craft malicious PE files that, when processed by applications using the vulnerable Libpeconv library, could lead to denial of service conditions or potentially arbitrary code execution.

Remediation

To remediate this vulnerability, users should update their Libpeconv library to a version after commit 75b1565 from November 30, 2022. Developers who maintain applications that use Libpeconv should:

  1. Update the Libpeconv dependency to the latest version
  2. If immediate updating is not possible, implement additional validation checks around PE file processing
  3. Consider implementing input validation to reject potentially malicious PE files
  4. Monitor for any unusual behavior in applications that use Libpeconv
  5. Apply defense-in-depth strategies to minimize the impact of potential exploits

References

  1. Israeli National Cyber Directorate Advisory: https://www.gov.il/en/Departments/faq/cve_advisories
  2. CWE-190: Integer Overflow or Wraparound: https://cwe.mitre.org/data/definitions/190.html
  3. Libpeconv commit 75b1565 (November 30, 2022) containing the fix

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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