high
7.5
CWE
476
Advisory Published
CVE Published
Updated

CVE-2020-6062: Null Pointer Dereference

First published: Wed 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.

Credit: talos-cna@cisco.com

Affected SoftwareAffected VersionHow to fix
ubuntu/coturn<4.5.0.7-1ubuntu2.18.04.2
4.5.0.7-1ubuntu2.18.04.2
ubuntu/coturn<4.5.1.1-1.1ubuntu0.19.10.1
4.5.1.1-1.1ubuntu0.19.10.1
ubuntu/coturn<4.5.1.1-1.1ubuntu0.20.04.1
4.5.1.1-1.1ubuntu0.20.04.1
ubuntu/coturn<4.5.0.3-1ubuntu0.3
4.5.0.3-1ubuntu0.3
debian/coturn
4.5.2-3
4.6.1-1
4.6.1-2
coturn=4.5.1.1
Debian GNU/Linux=9.0
Debian GNU/Linux=10.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Ubuntu Linux=19.10
Ubuntu Linux=20.04

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

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