Debian Security Advisory DSA coturn

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Debian security advisory DSA coturn.

Several vulnerabilities were discovered in coturn, a TURN and STUN server for VoIP.

Coturn is a server to facilitate audio/video calls and conferences by providing an implementation of TURN and STUN protocols.

WebRTC, SIP and other communication servers can use it to establish a call between parties who are otherwise unable connect to each other. It is not meant to be used directly by users.

Debian security advisory DSA coturn.

Package: coturn
CVE ID:

  • CVE-2020-4067
  • CVE-2020-6061
  • CVE-2020-6062

Debian Bug: 951876

Several vulnerabilities were discovered in coturn, a TURN and STUN server for VoIP.

CVE-2020-4067:
Felix Doerre reported that the STUN response buffer was not properly initialised, which could allow an attacker to leak bytes in the padding bytes from the connection of another client.

CVE-2020-6061:
Aleksandar Nikolic reported that a crafted HTTP POST request can lead to information leaks and other misbehavior.

CVE-2020-6062:
Aleksandar Nikolic reported that a crafted HTTP POST request can lead to server crash and denial of service.

For the oldstable distribution Debian 9 "Stretch", these problems have been fixed in version 4.5.0.5-1+deb9u2.

For the stable distribution Debian 10 "Buster", these problems have been fixed in version 4.5.1.1-1.1+deb10u1.

We recommend that you upgrade your coturn packages.

For the detailed security status of coturn please refer to its security tracker page.

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