CVE-2021-41079: Improper Input Validation

September 16, 2021 (updated November 7, 2023)

Apache Tomcat does not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.

References

lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2021-41079

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