CVE-2019-20372

NameCVE-2019-20372
DescriptionNGINX 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs948579

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nginx (PTS)bullseye (security), bullseye1.18.0-6.1+deb11u3fixed
bookworm1.22.1-9fixed
sid, trixie1.26.0-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nginxsourcestretch1.10.3-1+deb9u4
nginxsourcebuster1.14.2-2+deb10u2
nginxsource(unstable)1.16.1-3low948579

Notes

[jessie] - nginx <no-dsa> (Minor issue)
https://bertjwregeer.keybase.pub/2019-12-10%20-%20error_page%20request%20smuggling.pdf
https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e

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