CVE catalog
CVE-2023-39946
fastdds: CVE-2023-39946
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.89% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | fastdds | sid | 3.3.0+ds-3 | fixed |
| Debian | fastdds | trixie | 3.1.2+ds-1 | fixed |
| Debian | fastdds | bookworm | 2.9.1+ds-1+deb12u2 | fixed |
| Debian | fastdds | bookworm-security | 2.9.1+ds-1+deb12u2 | fixed |
| Ubuntu | fastdds | pro | 2.1.0+ds-9 | vulnerable |
| Ubuntu | fastdds | pro | 2.4.1+ds-1 | vulnerable |
| Ubuntu | fastdds | pro | 2.5.0+ds-3 | vulnerable |
| Ubuntu | fastdds | pro | 2.5.0+ds-3ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | fastdds | source | sid | 2.10.1+ds-3 | not yet assigned | Not reported | [1043548] |
| Debian | fastdds | source | trixie | 2.10.1+ds-3 | not yet assigned | Not reported | [1043548] |
| Debian | fastdds | source | bookworm | 2.9.1+ds-1+deb12u1 | not yet assigned | Not reported | [1043548] |
| Ubuntu | fastdds | deb | pro | 2.5.0+ds-3ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2023-39946 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.