ALAS-2020-1409


Amazon Linux AMI Security Advisory: ALAS-2020-1409
Advisory Release Date: 2020-07-27 23:58 Pacific
Advisory Updated Date: 2020-07-29 21:35 Pacific
Severity: Important

Issue Overview:

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. (CVE-2020-13935 )

An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service. (CVE-2020-13934 )


Affected Packages:

tomcat8


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

New Packages:
noarch:
    tomcat8-log4j-8.5.57-1.85.amzn1.noarch
    tomcat8-javadoc-8.5.57-1.85.amzn1.noarch
    tomcat8-8.5.57-1.85.amzn1.noarch
    tomcat8-admin-webapps-8.5.57-1.85.amzn1.noarch
    tomcat8-lib-8.5.57-1.85.amzn1.noarch
    tomcat8-webapps-8.5.57-1.85.amzn1.noarch
    tomcat8-docs-webapp-8.5.57-1.85.amzn1.noarch
    tomcat8-el-3.0-api-8.5.57-1.85.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.57-1.85.amzn1.noarch
    tomcat8-jsp-2.3-api-8.5.57-1.85.amzn1.noarch

src:
    tomcat8-8.5.57-1.85.amzn1.src