// For flags

CVE-2021-41689

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

DCMTK versiones hasta 3.6.6 no maneja apropiadamente la copia de cadenas. Al enviar peticiones específicas al programa dcmqrdb, éste consulta su base de datos y copia el resultado incluso si éste es nulo, lo que puede incurrir en un desbordamiento en la región head de la 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:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* 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-476: NULL Pointer Dereference
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