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Test ID:1.3.6.1.4.1.25623.1.0.878063
Category:Fedora Local Security Checks
Title:Fedora: Security Advisory for coturn (FEDORA-2020-9eadf517de)
Summary:The remote host is missing an update for the 'coturn'; package(s) announced via the FEDORA-2020-9eadf517de advisory.
Description:Summary:
The remote host is missing an update for the 'coturn'
package(s) announced via the FEDORA-2020-9eadf517de advisory.

Vulnerability Insight:
The Coturn TURN Server is a VoIP media traffic NAT traversal server and gateway.
It can be used as a general-purpose network traffic TURN server/gateway, too.

This implementation also includes some extra features. Supported RFCs:

TURN specs:

- RFC 5766 - base TURN specs

- RFC 6062 - TCP relaying TURN extension

- RFC 6156 - IPv6 extension for TURN

- Experimental DTLS support as client protocol.

STUN specs:

- RFC 3489 - 'classic' STUN

- RFC 5389 - base 'new' STUN specs

- RFC 5769 - test vectors for STUN protocol testing

- RFC 5780 - NAT behavior discovery support

The implementation fully supports the following client-to-TURN-server protocols:

- UDP (per RFC 5766)

- TCP (per RFC 5766 and RFC 6062)

- TLS (per RFC 5766 and RFC 6062), TLS1.0/TLS1.1/TLS1.2

- DTLS (experimental non-standard feature)

Supported relay protocols:

- UDP (per RFC 5766)

- TCP (per RFC 6062)

Supported user databases (for user repository, with passwords or keys, if
authentication is required):

- SQLite

- MySQL

- PostgreSQL

- Redis

Redis can also be used for status and statistics storage and notification.

Supported TURN authentication mechanisms:

- long-term

- TURN REST API (a modification of the long-term mechanism, for time-limited
secret-based authentication, for WebRTC applications)

The load balancing can be implemented with the following tools (either one or a
combination of them):

- network load-balancer server

- DNS-based load balancing

- built-in ALTERNATE-SERVER mechanism.

Affected Software/OS:
'coturn' package(s) on Fedora 31.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-4067
https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcm
Debian Security Information: DSA-4711 (Google Search)
https://www.debian.org/security/2020/dsa-4711
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNJJO77ZLGGFJWNUGP6VDG5HPAC5UDBK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5G35UBNSRLL6SYRTODYTMBJ65TLQILUM/
https://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf1/ChangeLog#L15
https://github.com/coturn/coturn/issues/583
https://lists.debian.org/debian-lts-announce/2020/07/msg00002.html
SuSE Security Announcement: openSUSE-SU-2020:0937 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.html
https://usn.ubuntu.com/4415-1/
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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