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

CVE-2020-27818

Low
3.3/10

Summary

A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.

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

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