CVE-2023-39946 (GCVE-0-2023-39946)

Vulnerability from cvelistv5 – Published: 2023-08-11 13:37 – Updated: 2025-02-13 17:03
VLAI
Title
Heap overflow in push_back_helper due to a CDR message
Summary
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, heap can be overflowed by providing a PID_PROPERTY_LIST parameter that contains a CDR string with length larger than the size of actual content. In `eprosima::fastdds::dds::ParameterPropertyList_t::push_back_helper`, `memcpy` is called to first copy the octet'ized length and then to copy the data into `properties_.data`. At the second memcpy, both `data` and `size` can be controlled by anyone that sends the CDR string to the discovery multicast port. This can remotely crash any Fast-DDS process. Versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6 contain a patch for this issue.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-10 14:22 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version CPE status
eProsima Fast-DDS Affected: < 2.6.6
Affected: >= 2.7.0, < 2.9.2
Affected: >= 2.10.0, < 2.10.2
Affected: = 2.11.0
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        "vulnStatus": "Modified",
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            ],
            "source": "nvd@nist.gov",
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    },
    "redhat_vex": {
      "current_release_date": "2025-05-28T23:02:20+00:00",
      "cve": "CVE-2023-39946",
      "id": "CVE-2023-39946",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Heap overflow in push_back_helper due to a CDR message",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-39946.json",
      "version": "3"
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              "dateUpdated": "2024-08-02T18:18:10.179Z",
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                "url": "https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-j297-rg6j-m7hx"
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            ],
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            "metrics": [
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                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
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            "discovery": "UNKNOWN"
          },
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        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2023-39946",
        "datePublished": "2023-08-11T13:37:07.478Z",
        "dateReserved": "2023-08-07T16:27:27.074Z",
        "dateUpdated": "2025-02-13T17:03:16.897Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.