// For flags

CVE-2021-41687

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

DCMTK through 3.6.6 does not handle memory free properly. The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.

DCMTK versiones hasta 3.6.6, no maneja apropiadamente la liberación de memoria. El programa malloca una memoria heap para el análisis de los datos, pero no la libera cuando se produce un error en el análisis. El envío de peticiones específicas al programa dcmqrdb incurre en la fuga de memoria. Un atacante puede usarlo para lanzar un ataque DoS

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-27 CVE Reserved
  • 2022-06-28 CVE Published
  • 2024-06-29 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Offis
Search vendor "Offis"
 Dcmtk
Search vendor "Offis" for product "Dcmtk"
 <= 3.6.6
Search vendor "Offis" for product "Dcmtk" and version " <= 3.6.6"
-
Affected