CVE-2020-4067

Publication date 29 June 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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

Show unmaintained releases

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

References

Related Ubuntu Security Notices (USN)