MGASA-2021-0087 - Updated coturn package fixes a security vulnerability

Publication date: 19 Feb 2021
URL: https://advisories.mageia.org/MGASA-2021-0087.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2020-26262

When sending a CONNECT request with the XOR-PEER-ADDRESS value of 0.0.0.0, a
malicious user would be able to relay packets to the loopback interface.
Additionally, when coturn is listening on IPv6, which is default, the loopback
interface can also be reached by making use of either [::1] or [::] as the peer
address (CVE-2020-26262).

If updating is not possible, the setting --denied-peer-ip=0.0.0.0 can mitigate
this issue.

The coturn package has been patched to fix this issue.

References:
- https://bugs.mageia.org/show_bug.cgi?id=28068
- https://github.com/coturn/coturn/security/advisories/GHSA-6g6j-r9rf-cm7p
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26262

SRPMS:
- 7/core/coturn-4.5.2-1.4.mga7