Skip to main content

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

CVE-2021-30758

High
8.8/10

Summary

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • HIGH

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