CVE-2019-17569

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ApacheApache TomcatApache Tomcat 9.0.28 to 9.0.30affected
ApacheApache Tomcat8.5.48 to 8.5.50affected
ApacheApache Tomcat7.0.98 to 7.0.99affected

Weaknesses

  • HTTP Request Smuggling

ADP Enrichment

CVE Program Container

Additional References

References