~ / search / GHSA-767j-jfh2-jvrc

GHSA-767j-jfh2-jvrc

Potential HTTP request smuggling in Apache Tomcat

Source: GitHub Advisory Database (reviewed) Moderate CVE-2019-17569

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.tomcat.embed:tomcat-embed-core >= 7.0.98, < 7.0.100 7.0.100
Maven org.apache.tomcat.embed:tomcat-embed-core >= 8.5.48, < 8.5.51 8.5.51
Maven org.apache.tomcat.embed:tomcat-embed-core >= 9.0.28, < 9.0.31 9.0.31
Maven org.apache.tomcat:tomcat >= 7.0.98, < 7.0.100 7.0.100
Maven org.apache.tomcat:tomcat >= 8.5.48, < 8.5.51 8.5.51
Maven org.apache.tomcat:tomcat >= 9.0.28, < 9.0.31 9.0.31

Details

As written in the advisory (Markdown source, shown as plain text).

The refactoring present in Apache Tomcat versions 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.

References

External links from the advisory. They lead to third-party sites.