ALAS-2021-1535


Amazon Linux AMI Security Advisory: ALAS-2021-1535
Advisory Release Date: 2021-09-02 22:54 Pacific
Advisory Updated Date: 2021-09-08 19:30 Pacific
Severity: Medium
References: CVE-2021-33037 

Issue Overview:

Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding. (CVE-2021-33037)


Affected Packages:

tomcat8


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

New Packages:
noarch:
    tomcat8-el-3.0-api-8.5.69-1.88.amzn1.noarch
    tomcat8-docs-webapp-8.5.69-1.88.amzn1.noarch
    tomcat8-jsp-2.3-api-8.5.69-1.88.amzn1.noarch
    tomcat8-javadoc-8.5.69-1.88.amzn1.noarch
    tomcat8-lib-8.5.69-1.88.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.69-1.88.amzn1.noarch
    tomcat8-8.5.69-1.88.amzn1.noarch
    tomcat8-admin-webapps-8.5.69-1.88.amzn1.noarch
    tomcat8-log4j-8.5.69-1.88.amzn1.noarch
    tomcat8-webapps-8.5.69-1.88.amzn1.noarch

src:
    tomcat8-8.5.69-1.88.amzn1.src