Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2020.2281
coturn security update
2 July 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: coturn
Publisher: Debian
Operating System: Debian GNU/Linux 8
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4067
Reference: ESB-2020.2237
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Package : coturn
Version : 4.2.1.2-1+deb8u2
CVE ID : CVE-2020-4067
In coturn before version 4.5.1.3, there is an issue whereby
STUN/TURN response buffer is not initialized properly. There
is a leak of information between different client connections.
One client (an attacker) could use their connection to
intelligently query coturn to get interesting bytes in the
padding bytes from the connection of another client.
For Debian 8 "Jessie", this problem has been fixed in version
4.2.1.2-1+deb8u2.
We recommend that you upgrade your coturn packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
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