VYPR
Unrated severityNVD Advisory· Published Aug 11, 2023· Updated Feb 13, 2025

Heap overflow in push_back_helper due to a CDR message

CVE-2023-39946

Description

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.

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Affected products

2
  • Eprosima/FastDDSllm-create2 versions
    <2.11.1+ 1 more
    • (no CPE)range: <2.11.1
    • (no CPE)range: < 2.6.6

Patches

Vulnerability mechanics

References

3

News mentions

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