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Access of Resource Using Incompatible Type ('Type Confusion')

CVE-2021-30859

High
9.3/10

Summary

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.

  • MEDIUM
  • NETWORK
  • NONE
  • COMPLETE
  • COMPLETE
  • COMPLETE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References

Advisory Timeline

  • Published