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CVE-2019-17569

Published: 24 February 2020

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.

Priority

Low

Cvss 3 Severity Score

4.8

Score breakdown

Status

Package Release Status
tomcat7
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Does not exist

trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://github.com/apache/tomcat/commit/b191a0d9cf06f4e04257c221bfe41d2b108a9cc8 (7.0.100)


tomcat8
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Does not exist

trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:

upstream: https://github.com/apache/tomcat/commit/959f1dfd767bf3cb64776b44f7395d1d8d8f7ab3 (8.5.51)

tomcat9
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Not vulnerable
(code not present)
trusty Does not exist

upstream
Released (9.0.31-1)
xenial Does not exist

Patches:


upstream: https://github.com/apache/tomcat/commit/060ecc5eb839208687b7fcc9e35287ac8eb46998 (9.0.31)

Severity score breakdown

Parameter Value
Base score 4.8
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N