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No exploitation reportedFix available

CVE-2018-4058

No exploitation reported by the sources we read.

  • Published2019-03-21
  • Fixed in4.5.0.9

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability.

Timeline

dates in UTC
  1. 2019-03-2116:00CVE publishedNVD

Versions per branch

NVD
Coturn project coturn
BranchAffectedFixed in
4.5< 4.5.0.94.5.0.9

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • coturnUbuntu:18.04:LTSall versions · fixed in 4.5.0.7-1ubuntu2.18.04.1
  • coturnUbuntu:16.04:LTSall versions · fixed in 4.5.0.3-1ubuntu0.2
  • coturnDebian:14all versions · fixed in 4.5.1.0-1
  • coturnDebian:13all versions · fixed in 4.5.1.0-1
  • coturnDebian:12all versions · fixed in 4.5.1.0-1
  • coturnDebian:9all versions · fixed in 4.5.0.5-1+deb9u1
  • coturnDebian:8all versions · fixed in 4.2.1.2-1+deb8u1

Full record on NVD

Fix

  1. Update Coturn project coturn to 4.5.0.9

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

  • EUVD-2018-15844same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-j75v-963h-65p5same flawGitHub Advisory Database · CC-BY-4.0
  • DLA-1671-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DSA-4373-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Published
2019-03-21
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-j75v-963h-65p5

Frequently asked questions

What is CVE-2018-4058?

An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability.

Is CVE-2018-4058 actively exploited?

Active exploitation of CVE-2018-4058 has not been confirmed. Its EPSS score was 0.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-4058?

CVE-2018-4058 has a CVSS v3 base score of 7.7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

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