CVE-2020-4067
High
Description
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. This has been fixed in 4.5.1.3.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Coturn
PublishedJun 29, 2020
First seenJun 29, 2020
Weakness typeCWE-665CWE-665
How to fix
Update
- coturn_project coturn4.5.1.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| coturn_project coturn | v < 4.5.1.3 | 4.5.1.3 |
| debian debian_linux | 8.0, 9.0, 10.0 | — |
| fedoraproject fedora | 31, 32 | — |
| canonical ubuntu_linux | 16.04, 18.04, 19.10, 20.04 | — |
| opensuse leap | 15.2 | — |
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