Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
| Link | Tags |
|---|---|
| https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp | vendor advisory |
| http://www.openwall.com/lists/oss-security/2023/10/10/10 | third party advisory mailing list |
| https://www.debian.org/security/2023/dsa-5522 | third party advisory |
| https://www.debian.org/security/2023/dsa-5521 | third party advisory |
| https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html | third party advisory mailing list |
| https://security.netapp.com/advisory/ntap-20231103-0007/ |