CVE-2021-38435 (GCVE-0-2021-38435)

Vulnerability from cvelistv5 – Published: 2022-05-05 15:27 – Updated: 2025-04-16 16:22
VLAI?
Summary
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.
Severity ?
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
Impacted products
Vendor Product Version
RTI Connext DDS Professional Affected: 4.2x , ≤ 6.1.0 (custom)
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    RTI Connext DDS Secure Affected: 4.2x , ≤ 6.1.0 (custom)
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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.
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Also, contact RTI Support for mitigations, including how to use RTI DDS Secure to mitigate against the network amplification issue.\"}], \"data_type\": \"CVE\", \"generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"references\": {\"reference_data\": [{\"url\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02\", \"name\": \"https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://support.rti.com/s/login/?ec=302\u0026startURL=%2Fs%2F\", \"name\": \"https://support.rti.com/s/login/?ec=302\u0026startURL=%2Fs%2F\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"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.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-131 Incorrect Calculation of Buffer Size\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-38435\", \"STATE\": \"PUBLIC\", \"TITLE\": \"RTI Connext DDS Professional and Connext DDS Secure Incorrect Calculation of Buffer Size\", \"ASSIGNER\": \"ics-cert@hq.dhs.gov\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-38435\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-16T16:22:40.873Z\", \"dateReserved\": \"2021-08-10T00:00:00.000Z\", \"assignerOrgId\": \"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6\", \"datePublished\": \"2022-05-05T15:27:58.000Z\", \"assignerShortName\": \"icscert\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.