vulnerability

Oracle Linux: CVE-2020-1935: ELSA-2020-5020: tomcat security update (LOW) (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Feb 24, 2020
Added
Nov 12, 2020
Modified
Nov 22, 2024

Description

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led 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.
A flaw was found in Apache Tomcat. The HTTP header parsing code used an approach to end-of-line (EOL) parsing that allowed some invalid HTTP headers to be parsed as valid. This led to the 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. The highest threat with this vulnerability is system availability.

Solution(s)

oracle-linux-upgrade-tomcatoracle-linux-upgrade-tomcat-admin-webappsoracle-linux-upgrade-tomcat-docs-webapporacle-linux-upgrade-tomcat-el-2-2-apioracle-linux-upgrade-tomcat-javadocoracle-linux-upgrade-tomcat-jsp-2-2-apioracle-linux-upgrade-tomcat-jsvcoracle-linux-upgrade-tomcat-liboracle-linux-upgrade-tomcat-servlet-3-0-apioracle-linux-upgrade-tomcat-webapps
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