Improper Initialization Affecting coturn package, versions <4.5.1.1-1.1ubuntu0.20.04.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.45% (75th percentile)

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  • Snyk IDSNYK-UBUNTU2004-COTURN-578066
  • published29 Jun 2020
  • disclosed29 Jun 2020

Introduced: 29 Jun 2020

CVE-2020-4067  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 coturn to version 4.5.1.1-1.1ubuntu0.20.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream coturn package and not the coturn package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Scores

version 3.1