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Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVE-2021-32439

High
7.8/10

Summary

Buffer overflow in the "stbl_AppendSize" function in MP4Box in GPAC before v2.0.0 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • HIGH

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References

Advisory Timeline

  • Published