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AUSCERT External Security Bulletin Redistribution
USN-4235-2: nginx vulnerability
16 January 2020
AusCERT Security Bulletin Summary
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
CVE Names: CVE-2019-20372
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USN-4235-2: nginx vulnerability
15 January 2020
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 14.04 ESM
nginx could be made to expose sensitive information over the network.
o nginx - small, powerful, scalable web/proxy server
USN-4235-1 fixed a vulnerability in nginx. This update provides the
corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
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.
The problem can be corrected by updating your system to the following package
Ubuntu 14.04 ESM
nginx-common - 1.4.6-1ubuntu3.9+esm1
nginx-core - 1.4.6-1ubuntu3.9+esm1
nginx-extras - 1.4.6-1ubuntu3.9+esm1
nginx-full - 1.4.6-1ubuntu3.9+esm1
nginx-light - 1.4.6-1ubuntu3.9+esm1
To update your system, please follow these instructions: https://
In general, a standard system update will make all the necessary changes.
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