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NGINX Extended Security Update (2) →

CVE-2019-20372 | Ubuntu
Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.
NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

That’s the essence of the CVE-2019-20372. Yet again, as I mentioned in my NGINX Extended post I was not going to work on 1.14.x branch any more with the exception of security updates – this is the case for such exception. Both 1.14.x for Xenial (16.04 LTS) and 1.16.x for Bionic (18.04 LTS) were patched against this vulnerability and are available from my PPA. On Docker Hub I bumped up only the 1.16.x branch as usage for 1.14.x is pretty much non-existent.