Vulnerability identifier: #VU31795

Vulnerability risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-310

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
mumble
Other software / Other software solutions

Vendor: mumble-voip

Description

The vulnerability allows a remote attacker to preform MitM attack.

The vulnerability exists due to usage of photographically weak OCB2 encryption. A remote attacker can intercept data and decrypt it.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

mumble: 1.1.8 - 1.3.1 rc1

---

External links
http://github.com/mumble-voip/mumble/issues/4219

---

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.