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

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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
02/24/2020
Created
11/14/2020
Added
11/12/2020
Modified
11/22/2024

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-tomcat
  • oracle-linux-upgrade-tomcat-admin-webapps
  • oracle-linux-upgrade-tomcat-docs-webapp
  • oracle-linux-upgrade-tomcat-el-2-2-api
  • oracle-linux-upgrade-tomcat-javadoc
  • oracle-linux-upgrade-tomcat-jsp-2-2-api
  • oracle-linux-upgrade-tomcat-jsvc
  • oracle-linux-upgrade-tomcat-lib
  • oracle-linux-upgrade-tomcat-servlet-3-0-api
  • oracle-linux-upgrade-tomcat-webapps

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