CVE-2020-4067 | BDVDB-2026-138172 Detail
coturncoturn
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact low. Attack vector: network.
Weaknesses#
- CWE-665 Improper Initialization
References#
- 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
- https://www.debian.org/security/2020/dsa-4711
- https://lists.debian.org/debian-lts-announce/2020/07/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.html
- 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/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.