Advisory Published

USN-4235-1: nginx vulnerability

First published: Mon Jan 13 2020(Updated: )

Bert JW Regeer and Francisco Oca Gonzalez discovered that nginx incorrectly handled certain error_page configurations. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks and access resources contrary to expectations.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/nginx-common<1.16.1-0ubuntu2.1
1.16.1-0ubuntu2.1
=19.10
All of
ubuntu/nginx-core<1.16.1-0ubuntu2.1
1.16.1-0ubuntu2.1
=19.10
All of
ubuntu/nginx-extras<1.16.1-0ubuntu2.1
1.16.1-0ubuntu2.1
=19.10
All of
ubuntu/nginx-full<1.16.1-0ubuntu2.1
1.16.1-0ubuntu2.1
=19.10
All of
ubuntu/nginx-light<1.16.1-0ubuntu2.1
1.16.1-0ubuntu2.1
=19.10
All of
ubuntu/nginx-common<1.15.9-0ubuntu1.2
1.15.9-0ubuntu1.2
=19.04
All of
ubuntu/nginx-core<1.15.9-0ubuntu1.2
1.15.9-0ubuntu1.2
=19.04
All of
ubuntu/nginx-extras<1.15.9-0ubuntu1.2
1.15.9-0ubuntu1.2
=19.04
All of
ubuntu/nginx-full<1.15.9-0ubuntu1.2
1.15.9-0ubuntu1.2
=19.04
All of
ubuntu/nginx-light<1.15.9-0ubuntu1.2
1.15.9-0ubuntu1.2
=19.04
All of
ubuntu/nginx-common<1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.7
=18.04
All of
ubuntu/nginx-core<1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.7
=18.04
All of
ubuntu/nginx-extras<1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.7
=18.04
All of
ubuntu/nginx-full<1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.7
=18.04
All of
ubuntu/nginx-light<1.14.0-0ubuntu1.7
1.14.0-0ubuntu1.7
=18.04
All of
ubuntu/nginx-common<1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5
=16.04
All of
ubuntu/nginx-core<1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5
=16.04
All of
ubuntu/nginx-extras<1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5
=16.04
All of
ubuntu/nginx-full<1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5
=16.04
All of
ubuntu/nginx-light<1.10.3-0ubuntu0.16.04.5
1.10.3-0ubuntu0.16.04.5
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this nginx vulnerability?

    The vulnerability ID for this nginx vulnerability is CVE-2019-20372.

  • What is the severity of CVE-2019-20372?

    The severity of CVE-2019-20372 is moderate.

  • Which software versions are affected by CVE-2019-20372?

    The affected software versions are: nginx-common 1.16.1-0ubuntu2.1, nginx-core 1.16.1-0ubuntu2.1, nginx-extras 1.16.1-0ubuntu2.1, nginx-full 1.16.1-0ubuntu2.1, nginx-light 1.16.1-0ubuntu2.1, nginx-common 1.15.9-0ubuntu1.2, nginx-core 1.15.9-0ubuntu1.2, nginx-extras 1.15.9-0ubuntu1.2, nginx-full 1.15.9-0ubuntu1.2, nginx-light 1.15.9-0ubuntu1.2, nginx-common 1.14.0-0ubuntu1.7, nginx-core 1.14.0-0ubuntu1.7, nginx-extras 1.14.0-0ubuntu1.7, nginx-full 1.14.0-0ubuntu1.7, nginx-light 1.14.0-0ubuntu1.7, nginx-common 1.10.3-0ubuntu0.16.04.5, nginx-core 1.10.3-0ubuntu0.16.04.5, nginx-extras 1.10.3-0ubuntu0.16.04.5, nginx-full 1.10.3-0ubuntu0.16.04.5, nginx-light 1.10.3-0ubuntu0.16.04.5.

  • How can a remote attacker exploit CVE-2019-20372?

    A remote attacker could possibly exploit this vulnerability to perform HTTP request smuggling attacks and access resources contrary to expectations.

  • How can I fix CVE-2019-20372?

    To fix CVE-2019-20372, upgrade to the following versions: nginx-common 1.16.1-0ubuntu2.1, nginx-core 1.16.1-0ubuntu2.1, nginx-extras 1.16.1-0ubuntu2.1, nginx-full 1.16.1-0ubuntu2.1, nginx-light 1.16.1-0ubuntu2.1.

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