Reachable Assertion in Fast DDS - CVE-2023-39534
Published: August 22, 2023
Vulnerability identifier: #VU79819
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-39534
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Fast DDS
Fast DDS
Software vendor:
eProsima
eProsima
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when processing malformed GAP submessages. A remote attacker can send specially crafted traffic to the system and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://bombshell.gtisc.gatech.edu/ddsfuzz/pcap/fastdds-assert-230509.pcap
- https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-fcr6-x23w-94wp
- https://github.com/eProsima/Fast-DDS/blob/v2.9.1/src/cpp/rtps/reader/StatefulReader.cpp#L863
- https://github.com/eProsima/Fast-DDS/blob/v2.9.1/include/fastdds/rtps/common/SequenceNumber.h#L238-L252
- https://www.debian.org/security/2023/dsa-5481