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

CVE-2020-20891

High
8.8/10

Summary

Buffer Overflow vulnerability in function config_input in libavfilter/vf_gblur.c in Ffmpeg before 4.3, allows attackers to cause a Denial of Service or other unspecified impacts.

  • LOW
  • NETWORK
  • 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