#VU31795 Cryptographic issues in mumble

Vulnerability identifier: #VU31795

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

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

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

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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.