CVE-2020-4067: fallo de gravedad alta en coturn
Improper Initialization in coturn
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7epss 1.9%
probabilidad de explotación
1.9%top 21% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Productos afectados
coturn · coturnCVEs relacionadas — coturn
En el mismo producto, de las más peligrosas a las menos.
CVE-2020-26262HIGHLoopback bypass in CoturnEPSS 1.5%CVE-2026-40613HIGHCoturn: Misaligned Memory Access in coturn STUN Attribute Parser (Remote DoS on ARM64)EPSS 1.5%CVE-2026-53448HIGHCoturn: SQL Injection in HTTPS Admin Panel Delete OperationsEPSS 0.7%CVE-2026-43994HIGHCoturn: Stack buffer overflow in decode_oauth_token_gcm()EPSS 0.7%CVE-2026-73214HIGHcoturn allocates a full per-peer SSL/session before verifying the DTLS cookie, enabling source-spoofing/botnet state-exhaustion DoSEPSS 0.6%CVE-2026-73216MEDIUMcoturn: mobility disconnects bypass allocation quotas and exhaust relay capacityEPSS 0.6%
Referencias
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.htmlhttps://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf1/ChangeLog#L15https://github.com/coturn/coturn/issues/583https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcmhttps://lists.debian.org/debian-lts-announce/2020/07/msg00002.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5G35UBNSRLL6SYRTODYTMBJ65TLQILUM/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNJJO77ZLGGFJWNUGP6VDG5HPAC5UDBK/https://usn.ubuntu.com/4415-1/https://www.debian.org/security/2020/dsa-4711