Denial of service in Eclipse Mosquitto
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-34431 |
| CWE-ID | CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Eclipse Mosquitto Server applications / Other server solutions |
| Vendor | Eclipse |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Memory leak
EUVDB-ID: #VU55435
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 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsEclipse Mosquitto: 1.6.1 - 2.0.10
External linkshttp://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.
