Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-1935: 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.
Fixed packages 10
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | tomcat | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-admin-webapps | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-docs-webapp | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-el-2.2-api | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-javadoc | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-jsp-2.2-api | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-jsvc | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-lib | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-servlet-3.0-api | 0:7.0.76-10.amzn2.0.6 |
| Amazon Linux · 2 | tomcat-webapps | 0:7.0.76-10.amzn2.0.6 |
Vulnerabilities 1
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Medium 4.8
Potential HTTP request smuggling in Apache Tomcat
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 …
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2020-1935.html