Important: tomcat8

2019-05-20T18:59:00
ID ALAS-2019-1208
Type amazon
Reporter Amazon
Modified 2019-05-20T18:59:00

Description

Issue Overview:

When the default servlet in Apache Tomcat returned a redirect to a directory (e.g. redirecting to '/foo/' when the user requested '/foo') a specially crafted URL could be used to cause the redirect to be generated to any URI of the attackers choice. (CVE-2018-11784 __)

When running on Windows with enableCmdLineArguments enabled, the CGI Servlet in Apache Tomcat is vulnerable to Remote Code Execution due to a bug in the way the JRE passes command line arguments to Windows. The CGI Servlet is disabled by default. The CGI option enableCmdLineArguments is disable by default in Tomcat 9.0.x (and will be disabled by default in all versions in response to this vulnerability). For a detailed explanation of the JRE behaviour, see Markus Wulftange's blog (https://codewhitesec.blogspot.com/2016/02/java-and-command-line-injections-in-windows.html) and this archived MSDN blog (https://web.archive.org/web/20161228144344/https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/). (CVE-2019-0232 __)

The HTTP/2 implementation in Apache Tomcat accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS. (CVE-2019-0199 __)

Affected Packages:

tomcat8

Issue Correction:
Run yum update tomcat8 to update your system.

New Packages:

noarch:  
    tomcat8-8.5.40-1.79.amzn1.noarch  
    tomcat8-docs-webapp-8.5.40-1.79.amzn1.noarch  
    tomcat8-el-3.0-api-8.5.40-1.79.amzn1.noarch  
    tomcat8-admin-webapps-8.5.40-1.79.amzn1.noarch  
    tomcat8-jsp-2.3-api-8.5.40-1.79.amzn1.noarch  
    tomcat8-log4j-8.5.40-1.79.amzn1.noarch  
    tomcat8-servlet-3.1-api-8.5.40-1.79.amzn1.noarch  
    tomcat8-webapps-8.5.40-1.79.amzn1.noarch  
    tomcat8-lib-8.5.40-1.79.amzn1.noarch  
    tomcat8-javadoc-8.5.40-1.79.amzn1.noarch

src:  
    tomcat8-8.5.40-1.79.amzn1.src