QID 352801

Date Published: 2021-09-13

QID 352801: Amazon Linux Security Advisory for tomcat7: ALAS-2021-1534

A vulnerability in the jndi realm of apache tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the lockout realm.
This issue affects apache tomcat 10.0.0-m1 to 10.0.5; 9.0.0.m1 to 9.0.45; 8.5.0 to 8.5.65. (
( CVE-2021-30640)




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 - 6.5 severity.
  • CVSS V2 rated as Medium - 5.8 severity.
  • Solution
    Please refer to Amazon advisory: ALAS-2021-1534 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352801

    Software Advisories
    Advisory ID Software Component Link
    ALAS-2021-1534 Amazon Linux URL Logo alas.aws.amazon.com/ALAS-2021-1534.html