| Name | CVE-2019-17569 |
| Description | The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2133-1, DSA-4673-1, DSA-4680-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| tomcat9 (PTS) | buster | 9.0.31-1~deb10u6 | fixed |
| buster (security) | 9.0.31-1~deb10u12 | fixed | |
| bullseye | 9.0.43-2~deb11u9 | fixed | |
| bullseye (security) | 9.0.43-2~deb11u10 | fixed | |
| sid, trixie, bookworm | 9.0.70-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| tomcat7 | source | jessie | 7.0.56-3+really7.0.100-1 | DLA-2133-1 | ||
| tomcat7 | source | (unstable) | (unfixed) | |||
| tomcat8 | source | jessie | (not affected) | |||
| tomcat8 | source | stretch | 8.5.54-0+deb9u1 | DSA-4673-1 | ||
| tomcat8 | source | (unstable) | (unfixed) | |||
| tomcat9 | source | buster | 9.0.31-1~deb10u1 | DSA-4680-1 | ||
| tomcat9 | source | (unstable) | 9.0.31-1 |
[jessie] - tomcat8 <not-affected> (vulnerable code introduced in later version)
[stretch] - tomcat7 <ignored> (No components in libservlet3.0-java binary package are affected)
https://github.com/apache/tomcat/commit/060ecc5eb839208687b7fcc9e35287ac8eb46998 (9.0.31)
https://github.com/apache/tomcat/commit/959f1dfd767bf3cb64776b44f7395d1d8d8f7ab3 (8.5.51)
https://github.com/apache/tomcat/commit/b191a0d9cf06f4e04257c221bfe41d2b108a9cc8 (7.0.100)