#VU79817 Resource management error in Fast DDS - CVE-2021-38425

Vulnerability identifier: #VU79817

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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-2021-38425

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Fast DDS
Server applications / Other server solutions

Vendor: eProsima

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fast DDS: 0.3.0 - 0.3.1, 0.4.0, 0.5.0 - 0.5.2, 1.0.0 - 1.0.6, 1.1.0 - 1.10.1, 1.2.0, 1.3.0 - 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.7.0 - 1.7.3, 1.8.0 - 1.8.5, 1.9.0 - 1.9.5, 2.0.0 - 2.0.3, 2.1.0 - 2.11.2, 2.2.0 - 2.2.1, 2.3.0 - 2.3.6

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External links
https://github.com/eProsima/Fast-DDS
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.