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

CVE-2020-21531

Medium
5.5/10

Summary

fig2dev 3.2.7b contains a global buffer overflow in the conv_pattern_index function in gencgm.c.

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