-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4829-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
January 11, 2021                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : coturn
CVE ID         : CVE-2020-26262

A flaw was discovered in coturn, a TURN and STUN server for VoIP. By
default coturn does not allow peers on the loopback addresses
(127.x.x.x and ::1). A remote attacker can bypass the protection via a
specially crafted request using a peer address of '0.0.0.0' and trick
coturn in relaying to the loopback interface. If listening on IPv6 the
loopback interface can also be reached by using either [::1] or [::] as
the address.

For the stable distribution (buster), this problem has been fixed in
version 4.5.1.1-1.1+deb10u2.

We recommend that you upgrade your coturn packages.

For the detailed security status of coturn please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/coturn

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
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=zss6
-----END PGP SIGNATURE-----