CVE-2020-4067

2020-06-2900:00:00

ubuntu.com

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

79.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchcoturn< 4.5.0.7-1ubuntu2.18.04.2UNKNOWN
ubuntu19.10noarchcoturn< 4.5.1.1-1.1ubuntu0.19.10.1UNKNOWN
ubuntu20.04noarchcoturn< 4.5.1.1-1.1ubuntu0.20.04.1UNKNOWN
ubuntu16.04noarchcoturn< 4.5.0.3-1ubuntu0.3UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	coturn	< 4.5.0.7-1ubuntu2.18.04.2	UNKNOWN
ubuntu	19.10	noarch	coturn	< 4.5.1.1-1.1ubuntu0.19.10.1	UNKNOWN
ubuntu	20.04	noarch	coturn	< 4.5.1.1-1.1ubuntu0.20.04.1	UNKNOWN
ubuntu	16.04	noarch	coturn	< 4.5.0.3-1ubuntu0.3	UNKNOWN