// For flags

CVE-2016-4291

 

Severity Score

7.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use a field from the structure in an operation that can cause the integer to overflow. This result is then used to allocate memory to copy file data in. Due to the lack of bounds checking on the integer, the allocated memory buffer can be made to be undersized at which point the reading of file data will write outside the bounds of the buffer. This can lead to code execution under the context of the application.

Cuando se abre un Hangul HShow Document (.hpt) y se procesa una estructura dentro del documento, Hancom Office 2014 utilizará un campo de la estructura en una operación que puede provocar que el entero se desborde. Este resultado se utiliza para asignar memoria para copiar datos del archivo dentro. Debido a la falta de verificación de limites en el entero, la memoria de búfer asignada se puede subdimensionar hasta el punto que la lectura de datos de archivo escribirá fuera de los límites del búfer. Esto puede conducir a la ejecución de código bajo el contexto de la aplicación.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-04-27 CVE Reserved
  • 2017-01-06 CVE Published
  • 2023-08-10 EPSS Updated
  • 2024-08-06 CVE Updated
  • 2024-08-06 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-190: Integer Overflow or Wraparound
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Hancom
Search vendor "Hancom"
 Hancom Office 2014
Search vendor "Hancom" for product "Hancom Office 2014"
 <= 9.1.0.2176
Search vendor "Hancom" for product "Hancom Office 2014" and version " <= 9.1.0.2176"
-
Affected