#VU55435 Memory leak in Eclipse Mosquitto


Published: 2021-07-29

Vulnerability identifier: #VU55435

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34431

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Eclipse Mosquitto
Server applications / Other server solutions

Vendor: Eclipse

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the broker. A remote authenticated attacker can send a specially crafted CONNECT message and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 1.6.1 - 2.0.10


External links
http://bugs.eclipse.org/bugs/show_bug.cgi?id=573191


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability