Vulnerability Details CVE-2023-39946
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 20.9%
CVSS Severity
CVSS v3 Score 8.2
References
- https://github.com/eProsima/Fast-DDS/commit/349227005827e8a67a0406b823138b5068cc47dc
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-j297-rg6j-m7hx
- https://www.debian.org/security/2023/dsa-5481
- https://github.com/eProsima/Fast-DDS/commit/349227005827e8a67a0406b823138b5068cc47dc
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-j297-rg6j-m7hx
- https://www.debian.org/security/2023/dsa-5481
Products affected by CVE-2023-39946
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cpe:2.3:a:eprosima:fast_dds:2.10.0
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cpe:2.3:a:eprosima:fast_dds:2.10.1
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cpe:2.3:a:eprosima:fast_dds:2.11.0
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cpe:2.3:a:eprosima:fast_dds:2.6.0
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cpe:2.3:a:eprosima:fast_dds:2.6.1
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cpe:2.3:a:eprosima:fast_dds:2.6.2
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cpe:2.3:a:eprosima:fast_dds:2.6.3
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cpe:2.3:a:eprosima:fast_dds:2.6.4
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cpe:2.3:a:eprosima:fast_dds:2.6.5
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cpe:2.3:a:eprosima:fast_dds:2.9.0
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cpe:2.3:a:eprosima:fast_dds:2.9.1
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:debian:debian_linux:12.0