Resource management error in Fast DDS - CVE-2021-38425
Published: August 22, 2023
Vulnerability identifier: #VU79817
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2021-38425
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
Affected software
Fast DDS
Ubuntu
fastdds-tools (Ubuntu package)
libfastrtps2.5 (Ubuntu package)
libfastrtps2.9 (Ubuntu package)
Ubuntu
fastdds-tools (Ubuntu package)
libfastrtps2.5 (Ubuntu package)
libfastrtps2.9 (Ubuntu package)
How to mitigate CVE-2021-38425
Install updates from vendor's website.
Fast DDS - update to 2.4.0
fastdds-tools (Ubuntu package) - addressed in versions Ubuntu Pro, 2.9.1+ds-1ubuntu0.1
libfastrtps2.5 (Ubuntu package) - update to Ubuntu Pro
libfastrtps2.9 (Ubuntu package) - update to 2.9.1+ds-1ubuntu0.1
fastdds-tools (Ubuntu package) - addressed in versions Ubuntu Pro, 2.9.1+ds-1ubuntu0.1
libfastrtps2.5 (Ubuntu package) - update to Ubuntu Pro
libfastrtps2.9 (Ubuntu package) - update to 2.9.1+ds-1ubuntu0.1