CVE-2020-6062: Null Pointer Dereference

Published Feb 19, 2020
·
Updated

An exploitable denial-of-service vulnerability exists in the way CoTURN 4.5.1.1 web server parses POST requests. A specially crafted HTTP POST request can lead to server crash and denial of service. An attacker needs to send an HTTP request to trigger this vulnerability.

Affected Software

11 affected componentsFixes available
Coturn Project Coturn=4.5.1.1
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
debian/coturn
4.5.2-34.6.1-14.6.1-24.12.0-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/coturn to a version that resolves this vulnerability.

    Fixed in 4.5.2-3Fixed in 4.6.1-1Fixed in 4.6.1-2Fixed in 4.12.0-1

Event History

Feb 19, 2020
CVE Published
via MITRE·06:25 PM
Data Sourced
via MITRE·06:25 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeaknessAffected Software
Feb 23, 2026
Data Sourced
via Ubuntu·11:28 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Launchpad·11:29 PM
Description
Jun 29, 2026
Data Sourced
via Debian·03:45 AM
DescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2020-6062?

CVE-2020-6062 is classified as a denial-of-service vulnerability that can lead to server crashes.

2

How do I fix CVE-2020-6062?

To address CVE-2020-6062, upgrade your CoTURN package to versions 4.5.2-3, 4.6.1-1, or 4.6.1-2.

3

What impact does CVE-2020-6062 have on my server?

CVE-2020-6062 can cause your CoTURN server to become unresponsive, resulting in a denial-of-service.

4

Which versions of CoTURN are affected by CVE-2020-6062?

CVE-2020-6062 affects CoTURN versions 4.5.0.3 through 4.5.1.1.

5

What type of attack is associated with CVE-2020-6062?

CVE-2020-6062 is exploited through specially crafted HTTP POST requests sent to the server.

Company

Resources

Contact

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CVE-2020-6062 - Null Pointer Dereference - SecAlerts