// For flags

CVE-2021-38435

RTI Connext DDS Professional and Connext DDS Secure Incorrect Calculation of Buffer Size

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

RTI Connext DDS Professional and Connext DDS Secure Versions 4.2x to 6.1.0 not correctly calculate the size when allocating the buffer, which may result in a buffer overflow.

RTI Connext DDS Professional y Connext DDS Secure versiones 4.2x a 6.1.0, no calculan correctamente el tamaño cuando asignan el búfer, lo que puede resultar en un desbordamiento del búfer

*Credits: Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), Víctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-08-10 CVE Reserved
  • 2022-05-05 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-131: Incorrect Calculation of Buffer Size
CAPEC
References (1)
URL Tag Source
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 Third Party Advisory
URL Date SRC
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
Rti
Search vendor "Rti"
 Connext Dds Professional
Search vendor "Rti" for product "Connext Dds Professional"
 >= 4.2 < 6.1.0
Search vendor "Rti" for product "Connext Dds Professional" and version " >= 4.2 < 6.1.0"
-
Affected
Rti
Search vendor "Rti"
 Connext Dds Secure
Search vendor "Rti" for product "Connext Dds Secure"
 >= 4.2 < 6.1.0
Search vendor "Rti" for product "Connext Dds Secure" and version " >= 4.2 < 6.1.0"
-
Affected