CVE-2021-45702:Use-after-free vulnerability in tremor-script Rust crate before 0.11.6

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Description Preview

A vulnerability was discovered in the tremor-script Rust crate versions prior to 0.11.6. The issue involves a merge operation that can result in a use-after-free condition (CWE-416). This vulnerability could potentially lead to memory corruption, application crashes, or in some cases, arbitrary code execution depending on how the affected code is used.

Overview

The tremor-script crate, which is a component used for scripting in the Tremor event processing system, contains a vulnerability in its merge operation functionality. When performing certain merge operations, the code may access memory after it has been freed, leading to undefined behavior. This use-after-free vulnerability (CWE-416) could potentially be exploited to cause application crashes, data corruption, or in worst-case scenarios, arbitrary code execution. The issue affects all versions of tremor-script prior to 0.11.6.

Remediation

Users of the tremor-script crate should update to version 0.11.6 or later, which contains a fix for this vulnerability. If immediate updating is not possible, consider implementing workarounds such as avoiding the use of merge operations in untrusted contexts or adding additional validation before performing merge operations. System administrators and developers should review their applications for usage of the affected crate and prioritize updates accordingly. As a general security practice, always keep dependencies updated to their latest secure versions.

References

  1. RUSTSEC Advisory: https://rustsec.org/advisories/RUSTSEC-2021-0111.html
  2. Detailed Advisory: https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tremor-script/RUSTSEC-2021-0111.md
  3. Common Weakness Enumeration (CWE-416): Use After Free - https://cwe.mitre.org/data/definitions/416.html

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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