CVE-2020-4067

Publication date 29 June 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

In coturn before version 4.5.1.3, there is an issue whereby STUN/TURN response buffer is not initialized properly. There is a leak of information between different client connections. One client (an attacker) could use their connection to intelligently query coturn to get interesting bytes in the padding bytes from the connection of another client. This has been fixed in 4.5.1.3.

Status

Package Ubuntu Release Status
coturn 20.04 LTS focal
Fixed 4.5.1.1-1.1ubuntu0.20.04.1
19.10 eoan
Fixed 4.5.1.1-1.1ubuntu0.19.10.1
18.04 LTS bionic
Fixed 4.5.0.7-1ubuntu2.18.04.2
16.04 LTS xenial
Fixed 4.5.0.3-1ubuntu0.3
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N