CVE-2020-4067

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
GitHub_MCNA
7 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 74%
VendorProductVersion
coturn_projectcoturn
𝑥
< 4.5.1.3
debiandebian_linux
8.0
debiandebian_linux
9.0
debiandebian_linux
10.0
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
19.10
canonicalubuntu_linux
20.04
opensuseleap
15.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
coturn
bullseye
4.5.2-3
fixed
bookworm
4.6.1-1
fixed
sid
4.6.1-2
fixed
trixie
4.6.1-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
coturn
focal
Fixed 4.5.1.1-1.1ubuntu0.20.04.1
released
eoan
Fixed 4.5.1.1-1.1ubuntu0.19.10.1
released
bionic
Fixed 4.5.0.7-1ubuntu2.18.04.2
released
xenial
Fixed 4.5.0.3-1ubuntu0.3
released
trusty
dne