[SECURITY] Fedora 31 Update: coturn-4.5.1.1-3.fc31
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Fedora Update Notification
FEDORA-2020-305c173af8
2020-04-01 01:54:46.133239
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Name : coturn
Product : Fedora 31
Version : 4.5.1.1
Release : 3.fc31
URL : https://github.com/coturn/coturn/
Summary : TURN/STUN & ICE Server
Description :
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.
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Update Information:
* An exploitable heap overflow vulnerability exists in the way CoTURN 4.5.1.1
web server parses POST requests. A specially crafted HTTP POST request can lead
to information leaks and other misbehavior. * An exploitable denial-of-service
vulnerability exists in the way CoTURN 4.5.1.1 web server parses POST requests.
A specially crafted HTTP POST request can lead to server crash and denial of
service.
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ChangeLog:
* Mon Mar 23 2020 Robert Scheck <robert(a)fedoraproject.org> - 4.5.1.1-3
- Added upstream patch for CVE-2020-6061 (#1816159)
- Backported upstream patch for CVE-2020-6062 (#1816163)
* Tue Jan 28 2020 Fedora Release Engineering <releng(a)fedoraproject.org> - 4.5.1.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
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References:
[ 1 ] Bug #1816159 - CVE-2020-6061 coturn: specially crafted HTTP POST request can lead
to heap overflow which can result in information leak
https://bugzilla.redhat.com/show_bug.cgi?id=1816159
[ 2 ] Bug #1816163 - CVE-2020-6062 coturn: specially crafted HTTP POST request can lead
to server crash and denial of service
https://bugzilla.redhat.com/show_bug.cgi?id=1816163
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-305c173af8' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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