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Ubuntu Security Notice USN-4690-1
January 11, 2021
coturn vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.10
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
coTURN could be made to crash or run programs if it received
specially crafted network traffic.
Software Description:
– coturn: TURN and STUN server for VoIP
Details:
It was discovered that coTURN allowed peers to connect and relay packets to
loopback addresses in the range of 127.x.x.x. A malicious user could use this
vulnerability to insert packages into the loopback interface.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.10:
coturn 4.5.1.3-1ubuntu0.1
Ubuntu 20.04 LTS:
coturn 4.5.1.1-1.1ubuntu0.20.04.2
Ubuntu 18.04 LTS:
coturn 4.5.0.7-1ubuntu2.18.04.3
Ubuntu 16.04 LTS:
coturn 4.5.0.3-1ubuntu0.4
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4690-1
CVE-2020-26262
Package Information:
https://launchpad.net/ubuntu/+source/coturn/4.5.1.3-1ubuntu0.1
https://launchpad.net/ubuntu/+source/coturn/4.5.1.1-1.1ubuntu0.20.04.2
https://launchpad.net/ubuntu/+source/coturn/4.5.0.7-1ubuntu2.18.04.3
https://launchpad.net/ubuntu/+source/coturn/4.5.0.3-1ubuntu0.4
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