QID 356581

Date Published: 2023-11-09

QID 356581: Amazon Linux Security Advisory for tomcat : ALAS2TOMCAT9-2023-010

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)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2TOMCAT9-2023-010 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356581

    CVE-2023-44487 | CVE-2023-45648 | CVE-2023-42795 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2TOMCAT9-2023-010 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALASTOMCAT9-2023-010.html
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