CVE-2020-4067

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.

References

https://www.debian.org/security/2020/dsa-4711

https://usn.ubuntu.com/4415-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNJJO77ZLGGFJWNUGP6VDG5HPAC5UDBK/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5G35UBNSRLL6SYRTODYTMBJ65TLQILUM/

https://lists.debian.org/debian-lts-announce/2020/07/msg00002.html

https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcm

https://github.com/coturn/coturn/issues/583

https://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf1/ChangeLog#L15

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3