CVE-2023-39945

Malformed serialized data in a data submessage leads to unhandled exception

Description

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.0, 2.10.2, 2.9.2, and 2.6.5, a data submessage sent to PDP port raises unhandled `BadParamException` in fastcdr, which in turn crashes fastdds. Versions 2.11.0, 2.10.2, 2.9.2, and 2.6.5 contain a patch for this issue.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.09%
Third-Party Advisory gatech.edu Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org
Affected: eProsima Fast-DDS
Published at:
Updated at:

References

Link Tags
https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-2rq6-8j7x-frr9 third party advisory
https://bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-exception-20230509-02.pcap third party advisory
https://github.com/eProsima/Fast-CDR/blob/v1.0.26/src/cpp/Cdr.cpp#L72-L79 third party advisory
https://www.debian.org/security/2023/dsa-5481 third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-39945?
CVE-2023-39945 has been scored as a high severity vulnerability.
How to fix CVE-2023-39945?
To fix CVE-2023-39945, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-39945 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-39945 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39945?
CVE-2023-39945 affects eProsima Fast-DDS.
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