CVE-2023-39534

moderate-risk
Published 2023-08-11

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS. Version 2.10.0, 2.9.2, and 2.6.5 contain a patch for this issue.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Debian Eprosima

References (10)

Third Party Advisory https://bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-assert-230509.pcap
Third Party Advisory https://github.com/eProsima/Fast-DDS/blob/v2.9.1/include/fastdds/rtps/common/Seq...
Third Party Advisory https://github.com/eProsima/Fast-DDS/blob/v2.9.1/src/cpp/rtps/reader/StatefulRea...
Third Party Advisory https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wp
Third Party Advisory https://www.debian.org/security/2023/dsa-5481
Third Party Advisory https://bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-assert-230509.pcap
Third Party Advisory https://github.com/eProsima/Fast-DDS/blob/v2.9.1/include/fastdds/rtps/common/Seq...
Third Party Advisory https://github.com/eProsima/Fast-DDS/blob/v2.9.1/src/cpp/rtps/reader/StatefulRea...
Third Party Advisory https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wp
Third Party Advisory https://www.debian.org/security/2023/dsa-5481
36
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 0/34 · Minimal
Exposure 10/34 · Low