CVE-2020-4067

2020-06-2920:15:10

Alpine Linux Development Team

security.alpinelinux.org

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

CVSS3

7.5

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

AI Score

7.5

Confidence

High

EPSS

0.006

Percentile

79.3%

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
Alpineedge-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.12-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.13-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.14-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.15-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.16-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.17-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.18-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.19-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN
Alpine3.20-communitynoarchcoturn< 4.5.1.3-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.12-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.13-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.14-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.15-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.16-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.17-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.18-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.19-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN
Alpine	3.20-community	noarch	coturn	< 4.5.1.3-r0	UNKNOWN