Could you please clarify: 

Affected versions 8.5.0 to 8.5.40
Mitigation says: 8.5.40 or later

What am I missing?


> On Jun 20, 2019, at 2:25 PM, Mark Thomas <ma...@apache.org> wrote:
> 
> CVE-2019-10072 Apache Tomcat HTTP/2 DoS
> 
> Severity: Important
> 
> Vendor: The Apache Software Foundation
> 
> Versions Affected:
> Apache Tomcat 9.0.0.M1 to 9.0.19
> Apache Tomcat 8.5.0 to 8.5.40
> 
> Description:
> The fix for CVE-2019-0199 was incomplete and did not address connection
> window exhaustion on write. By not sending WINDOW_UPDATE messages for
> the connection window (stream 0) clients were able
> to cause server-side threads to block eventually leading to thread
> exhaustion and a DoS.
> 
> Mitigation:
> Users of affected versions should apply one of the following mitigations:
> - Upgrade to Apache Tomcat 9.0.20 or later
> - Upgrade to Apache Tomcat 8.5.40 or later
> 
> Credit:
> John Simpson of Trend Micro Security Research working with Trend
> Micro's Zero Day Initiative
> 
> References:
> [1] http://tomcat.apache.org/security-9.html
> [2] http://tomcat.apache.org/security-8.html
> 
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