Webmin/Virtualmin fix a DoS/resource exhaustion vulnerability

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[TLP:CLEAR] Webmin/Virtualmin fix a DoS/resource exhaustion vulnerability

the administration tools Webmin 2.202 and Virtualmin 7.20.2 fix a UDP communication loop.

UDP loop - remote unauthenticated DoS/resource exhaustion (CVE-2024-2169)

CVSS 8.6 (High)

An unauthenticated remote attacker can, in the default configuration, use spoofed communication to cause an infinite communication loop between two instances, leading to resource exhaustion and denial of service [1]. Exploitation is trivial [2]. No PoC exploit has yet been published for the vulnerability in Webmin/Virtualmin [3].

The vulnerability is present in products:

webmin;<2.202;
virtualmin;<7.20.2;

CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

More information:

CVE-2024-2169 at cve.org, NVD
CVE-2024-45692 at cve.org, NVD
CWE-835 at cwe.mitre.org

The vulnerability was publicly disclosed 19. 3. 2021.

Links

CESNET, z.s.p.o. on 9. 9. 2024.

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[TLP:CLEAR] Webmin/Virtualmin fix a DoS/resource exhaustion vulnerability

UDP loop - remote unauthenticated DoS/resource exhaustion (CVE-2024-2169)

CVSS 8.6 (High)

Links