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Improper Restriction of Operations within the Bounds of a Memory Buffer

CVE-2019-3712

High
8.2/10

Summary

Dell WES Wyse Device Agent versions prior to 14.1.2.9 and Dell Wyse ThinLinux HAgent versions prior to 5.4.55 00.10 contain a buffer overflow vulnerability. An unauthenticated attacker may potentially exploit this vulnerability to execute arbitrary code on the system with privileges of the FTP client by sending specially crafted input data to the affected system. The FTP code that contained the vulnerability has been removed.

  • HIGH
  • ADJACENT_NETWORK
  • HIGH
  • CHANGED
  • NONE
  • NONE
  • HIGH
  • LOW

CWE-119 - Buffer Overflow

Buffer overflow attacks involve data transit and operations exceeding the restricted memory buffer, thereby corrupting or overwriting data in adjacent memory locations. Such overflow allows the attacker to run arbitrary code or manipulate the existing code to cause privilege escalation, data breach, denial of service, system crash and even complete system compromise. Given that languages such as C and C++ lack default safeguards against overwriting or accessing data in their memory, applications utilizing these languages are most susceptible to buffer overflows attacks.

References

Advisory Timeline

  • Published