QID 352859

Date Published: 2021-11-15

QID 352859: Amazon Linux Security Advisory for tomcat8: ALAS-2021-1547

A flaw was found in apache tomcat.
When tomcat was configured to use nio+openssl or nio2+openssl for tls, a specially crafted packet can trigger an infinite loop, resulting in a denial of service.
The highest threat from this vulnerability is to system availability. (
( CVE-2021-41079)



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.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
  • Solution
    Please refer to Amazon advisory: ALAS-2021-1547 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352859

    Software Advisories
    Advisory ID Software Component Link
    ALAS-2021-1547 Amazon Linux URL Logo alas.aws.amazon.com/ALAS-2021-1547.html