Amazon Linux 1 Security Advisory: ALAS-2023-1868
Advisory Release Date: 2023-10-16 13:45 Pacific
Advisory Updated Date: 2023-10-18 20:10 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
Incomplete Cleanup vulnerability in Apache Tomcat. When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue. (CVE-2023-42795)
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. (CVE-2023-44487)
Improper Input Validation vulnerability in Apache Tomcat. Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue. (CVE-2023-45648)
Affected Packages:
tomcat8
Issue Correction:
Run yum update tomcat8 to update your system.
noarch:
tomcat8-lib-8.5.94-1.95.amzn1.noarch
tomcat8-servlet-3.1-api-8.5.94-1.95.amzn1.noarch
tomcat8-admin-webapps-8.5.94-1.95.amzn1.noarch
tomcat8-log4j-8.5.94-1.95.amzn1.noarch
tomcat8-jsp-2.3-api-8.5.94-1.95.amzn1.noarch
tomcat8-8.5.94-1.95.amzn1.noarch
tomcat8-javadoc-8.5.94-1.95.amzn1.noarch
tomcat8-docs-webapp-8.5.94-1.95.amzn1.noarch
tomcat8-webapps-8.5.94-1.95.amzn1.noarch
tomcat8-el-3.0-api-8.5.94-1.95.amzn1.noarch
src:
tomcat8-8.5.94-1.95.amzn1.src