Executive Summary

Informations
Name CVE-2020-4067 First vendor Publication 2020-06-29
Vendor Cve Last vendor Modification 2020-07-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4067

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-665 Improper Initialization

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Os 3

Sources (Detail)

Source Url
CONFIRM https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcm
DEBIAN https://www.debian.org/security/2020/dsa-4711
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf...
https://github.com/coturn/coturn/issues/583
MLIST https://lists.debian.org/debian-lts-announce/2020/07/msg00002.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.html
UBUNTU https://usn.ubuntu.com/4415-1/

Alert History

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Date Informations
2020-09-03 01:30:22
  • Multiple Updates
2020-07-09 09:22:45
  • Multiple Updates
2020-07-09 00:22:46
  • Multiple Updates
2020-07-08 01:27:27
  • Multiple Updates
2020-07-08 01:26:37
  • Multiple Updates
2020-07-07 21:23:07
  • Multiple Updates
2020-07-07 12:26:25
  • Multiple Updates
2020-07-01 21:23:09
  • Multiple Updates
2020-06-30 05:22:45
  • First insertion