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Message-ID: <a144491b-8efb-dff2-cda5-e0d5be744359@apache.org>
Date: Wed, 15 Sep 2021 18:57:33 +0100
From: Mark Thomas <markt@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2021-41079: Apache Tomcat DoS with unexpected TLS packet
Severity: high
Description:
Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to
10.0.2 did 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.
Credit:
The Apache Tomcat security team would like to thank Thomas Wozenilek for
originally reporting this issue and David Frankson of Infinite Campus
for also providing a test case that reproduced the issue.
References:
https://lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E
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