CVE-2019-17569
Public on 2020-02-24
Modified on 2024-05-16
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.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Tomcat8.5 Extra | tomcat | 2023-08-21 | ALAS2TOMCAT8.5-2023-012 | Fixed |
| Amazon Linux 1 | tomcat7 | 2020-03-09 | ALAS-2020-1352 | Fixed |
| Amazon Linux 1 | tomcat8 | 2020-03-09 | ALAS-2020-1353 | Fixed |
| Amazon Linux 2023 | tomcat9 | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | CVSSv2 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
| NVD | CVSSv3 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |