// For flags

CVE-2021-20234

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compromised servers to crash. The highest threat from this vulnerability is to system availability.

Se encontró un fallo de consumo de recursos no controlado (pérdida de la memoria) en el cliente ZeroMQ en versiones anteriores a 4.3.3, en el archivo src/pipe.cpp. Este problema causa que un cliente que se conecta a múltiples servidores maliciosos o comprometidos se bloquee. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-04-01 CVE Published
  • 2023-12-16 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • 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
Zeromq
Search vendor "Zeromq"
 Libzmq
Search vendor "Zeromq" for product "Libzmq"
 < 4.3.3
Search vendor "Zeromq" for product "Libzmq" and version " < 4.3.3"
-
Affected