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

CVE-2019-17320

High
9.8/10

Summary

NetSarang XFTP Client 6.0149 and earlier version contains a buffer overflow vulnerability caused by improper boundary checks when copying file name from an attacker controlled FTP server. That leads attacker to execute arbitrary code by sending a crafted filename.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • 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