QID 355839

QID 355839: Amazon Linux Security Advisory for tomcat : ALAS2-2023-2216

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. (
( CVE-2020-1935)



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 Medium - 4.8 severity.
  • CVSS V2 rated as Medium - 5.8 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2023-2216 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 355839

    CVE-2020-1935 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2023-2216 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2023-2216.html
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