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OpenAdvisories
High · 8.2 CVE-2023-39946 EUVD-2023-43644

Heap overflow in push_back_helper due to a CDR message

Published Aug 11, 2023 · Updated Feb 13, 2025 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
eProsima Fast-DDS < 2.6.6, >= 2.7.0, < 2.9.2, >= 2.10.0, < 2.10.2, = 2.11.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 13 fastdds 2.10.1+ds-3 —
Debian 12 fastdds 2.9.1+ds-1+deb12u1 DSA-5481-1
Debian 11 fastdds 2.1.0+ds-9+deb11u1 DSA-5481-1
ReleasePackageFixed inAdvisory
Ubuntu Pro 22.04 LTS fastdds 2.5.0+ds-3ubuntu0.1~esm1 USN-6306-1

Advisories 2

References