Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eprosima | Fast Dds | >= 2.6.0, < 2.6.6 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://github.com/eProsima/Fast-DDS/commit/349227005827e8a67a0406b823138b5068ccThird Party Advisory
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-j297-rg6j-m7hxThird Party Advisory
- https://www.debian.org/security/2023/dsa-5481Third Party Advisory
- https://github.com/eProsima/Fast-DDS/commit/349227005827e8a67a0406b823138b5068ccThird Party Advisory
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-j297-rg6j-m7hxThird Party Advisory
- https://www.debian.org/security/2023/dsa-5481Third Party Advisory
FAQ
What is CVE-2023-39946?
CVE-2023-39946 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 provid...
How severe is CVE-2023-39946?
CVE-2023-39946 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-39946?
Check the references section above for vendor advisories and patch information. Affected products include: Eprosima Fast Dds, Debian Debian Linux.