CVE-2020-4067: 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…

PriorityP342high7.5CVSS 3.1

AVNACLPRNUINSUCHINAN

EPSS

1.85%

76.4th percentile

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.

Affected

20 ranges

Vendor	Product	Version range	Fixed in
canonical	ubuntu_linux	—	—
canonical	ubuntu_linux	—	—
canonical	ubuntu_linux	—	—
canonical	ubuntu_linux	—	—
coturn	coturn	—	—
coturn_project	coturn	< 4.5.1.3	4.5.1.3
coturn_project	coturn	>= 0 < 4.5.1.3-1	4.5.1.3-1
coturn_project	coturn	>= 0 < 4.5.1.3-1	4.5.1.3-1
coturn_project	coturn	>= 0 < 4.5.1.3-1	4.5.1.3-1
coturn_project	coturn	>= 0 < 4.5.1.3-1	4.5.1.3-1
coturn_project	coturn	>= 0 < 4.5.0.3-1ubuntu0.3	4.5.0.3-1ubuntu0.3
coturn_project	coturn	>= 0 < 4.5.0.7-1ubuntu2.18.04.2	4.5.0.7-1ubuntu2.18.04.2
coturn_project	coturn	>= 0 < 4.5.1.1-1.1ubuntu0.20.04.1	4.5.1.1-1.1ubuntu0.20.04.1
debian	coturn	< coturn 4.5.1.3-1 (bookworm)	coturn 4.5.1.3-1 (bookworm)
debian	debian_linux	—	—
debian	debian_linux	—	—
debian	debian_linux	—	—
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
opensuse	leap	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

osv7.5HIGH

vendor_debian7.0HIGH

vendor_ubuntu7.0HIGH

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