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CVE-2020-4067

Improper Initialization in coturn

Published: Jun 29, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-665
NVD MITRE
7.0CVSSHIGH
EPSS Score
1.8%
Top 23.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-665

Affected Products

coturncoturn
On-prem
Networking Infrastructure / load-balancer-proxy
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
OpenSUSE LeapNovell Inc.
On-premOS
Operating Systems / linux-distro
coturnoss-projectNetworking Infrastructure
canonical ltd.commercialGBOperating Systemsaka canonical
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
fedora projectoss-projectUSOperating Systemsaka fedora
novell inc.commercialUSOperating Systems
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcm
github.com
https://github.com/coturn/coturn/issues/583
github.com
https://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf1/ChangeLog#L15
github.com
and 12 more references View all →

Timeline

Published
Jun 29, 2020
Last Updated
Nov 21, 2024

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