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Integer Overflow or Wraparound

CVE-2020-26682

High
8.8/10

Summary

In libass 0.14.0, the `ass_outline_construct`'s call to `outline_stroke` causes a signed integer overflow.

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

CWE-190 - Integer Overflow or Wraparound

The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

References

Advisory Timeline

  • Published