CVE-2020-4067

Improper Initialization in coturn

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.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.93% Top 30%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: coturn coturn
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-4067?
CVE-2020-4067 has been scored as a high severity vulnerability.
How to fix CVE-2020-4067?
To fix CVE-2020-4067, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-4067 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-4067 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-4067?
CVE-2020-4067 affects coturn coturn.
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