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==========================================================================
Ubuntu Security Notice USN-4415-1
July 06, 2020

coturn vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in coTURN.

Software Description:
- coturn: TURN and STUN server for VoIP

Details:

Felix Dörre discovered that coTURN response buffer is not initialized properly.
An attacker could possibly use this issue to obtain sensitive information.
(CVE-2020-4067)

It was discovered that coTURN web server incorrectly handled HTTP POST
 requests.
An attacker could possibly use this issue to cause a denial of service, obtain
sensitive information or other unspecified impact.
(CVE-2020-6061, CVE-2020-6062)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
  coturn                          4.5.1.1-1.1ubuntu0.20.04.1

Ubuntu 19.10:
  coturn                          4.5.1.1-1.1ubuntu0.19.10.1

Ubuntu 18.04 LTS:
  coturn                          4.5.0.7-1ubuntu2.18.04.2

Ubuntu 16.04 LTS:
  coturn                          4.5.0.3-1ubuntu0.3

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4415-1
  CVE-2020-4067, CVE-2020-6061, CVE-2020-6062

Package Information:
  https://launchpad.net/ubuntu/+source/coturn/4.5.1.1-1.1ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/coturn/4.5.1.1-1.1ubuntu0.19.10.1
  https://launchpad.net/ubuntu/+source/coturn/4.5.0.7-1ubuntu2.18.04.2
  https://launchpad.net/ubuntu/+source/coturn/4.5.0.3-1ubuntu0.3

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