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High ALAS2023-2025-964 2 CVEs

Important: tomcat9 security update (Amazon Linux 2023)

Published May 7, 2025 · Updated May 13, 2025

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-31651: Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. CVE-2025-31650: Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5.

Fixed packages 8

ReleasePackageFixed in
Amazon Linux · 2023 tomcat9 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-admin-webapps 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-docs-webapp 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-el-3.0-api 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-jsp-2.3-api 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-lib 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-servlet-4.0-api 1:9.0.104-1.amzn2023.0.1
Amazon Linux · 2023 tomcat9-webapps 1:9.0.104-1.amzn2023.0.1

Vulnerabilities 2

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-31650.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-31651.html