// For flags

CVE-2020-13544

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An exploitable sign extension vulnerability exists in the TextMaker document parsing functionality of SoftMaker Office 2021’s TextMaker application. A specially crafted document can cause the document parser to sign-extend a length used to terminate a loop, which can later result in the loop’s index being used to write outside the bounds of a heap buffer during the reading of file data. An attacker can entice the victim to open a document to trigger this vulnerability.

Una vulnerabilidad de extensión de firma explotable en la funcionalidad de análisis de documentos de TextMaker de la aplicación TextMaker de SoftMaker Office 2021. Un documento especialmente diseñado puede hacer que el analizador de documentos firme y extienda una longitud usada para terminar un bucle, lo que luego puede resultar en que el índice del bucle sea usado para escribir fuera de los límites de un búfer de pila durante la lectura de datos de archivo. Un atacante puede atraer a la víctima a que abra un documento para activar esta vulnerabilidad

*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
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
  • 2020-05-26 CVE Reserved
  • 2021-01-06 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-194: Unexpected Sign Extension
  • CWE-681: Incorrect Conversion between Numeric Types
CAPEC
References (1)
URL Tag Source
URL Date SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1161 2024-08-04
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Softmaker
Search vendor "Softmaker"
 Softmaker Office
Search vendor "Softmaker" for product "Softmaker Office"
 2021
Search vendor "Softmaker" for product "Softmaker Office" and version "2021"
-
Affected