CVE-2023-39534: Malformed GAP submessage triggers assertion failure
First published: Fri Aug 11 2023(Updated: )
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.
Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/fastdds | <2.10.1+ | 2.10.1+ |
| ubuntu/fastdds | <2.5.0+ | 2.5.0+ |
| ubuntu/fastdds | <2.9.1+ | 2.9.1+ |
| eprosima Fast DDS | >=2.6.0<2.6.5 | |
| eprosima Fast DDS | >=2.9.0<2.9.2 | |
| eprosima Fast DDS | =2.10.0-rc1 | |
| Debian Debian Linux | =11.0 | |
| Debian Debian Linux | =12.0 | |
| >=2.6.0<2.6.5 | ||
| >=2.9.0<2.9.2 | ||
| =2.10.0-rc1 | ||
| =11.0 | ||
| =12.0 | ||
| debian/fastdds | 2.1.0+ds-9+deb11u1 2.9.1+ds-1+deb12u2 2.11.2+ds-6 |
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Reference Links
- https://bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-assert-230509.pcap
- https://github.com/eProsima/Fast-DDS/blob/v2.9.1/include/fastdds/rtps/common/SequenceNumber.h#L238-L252
- https://github.com/eProsima/Fast-DDS/blob/v2.9.1/src/cpp/rtps/reader/StatefulReader.cpp#L863
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wp
- https://www.debian.org/security/2023/dsa-5481
- https://launchpad.net/bugs/cve/CVE-2023-39534
- https://github.com/eProsima/Fast-DDS/commit/2674fdd93793fd314fcb81b795f9f62b8fcb1ea0
- https://github.com/eProsima/Fast-DDS/pull/3343
- https://security-tracker.debian.org/tracker/CVE-2023-39534
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39534
- https://ubuntu.com/security/notices/USN-6306-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-39534
- https://ubuntu.com/security/CVE-2023-39534
Frequently Asked Questions
What is CVE-2023-39534?
CVE-2023-39534 is a vulnerability in eprosima Fast DDS that can trigger an assertion failure and crash the system.
Which versions of eprosima Fast DDS are affected by CVE-2023-39534?
Versions prior to 2.10.0, 2.9.2, and 2.6.5 of eprosima Fast DDS are affected by CVE-2023-39534.
How can CVE-2023-39534 be exploited?
CVE-2023-39534 can be exploited by sending a malformed GAP submessage to the FastDDS system.
How severe is CVE-2023-39534?
CVE-2023-39534 has a severity rating of 7.5 (high).
How can I fix CVE-2023-39534?
You can fix CVE-2023-39534 by updating to version 2.10.0, 2.9.2, or 2.6.5 of eprosima Fast DDS.
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