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                                   CERT-Renater

                       Note d'Information No. 2024/VULN315
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DATE                : 04/07/2024

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Apache Tomcat versions prior to
                              11.0.0-M21, 10.1.25, 9.0.89.

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https://lists.apache.org/thread/gctyk4go34b7ddo235zktxgnnhwcvfht
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[SECURITY] CVE-2024-34750 Apache Tomcat - Denial of Service
CVE-2024-34750 Apache Tomcat - Denial of Service

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 11.0.0-M1 to 11.0.0-M20
Apache Tomcat 10.1.0-M1 to 10.1.24
Apache Tomcat 9.0.0-M1 to 9.0.89


Description:
When processing an HTTP/2 stream, Tomcat did not handle some cases
of excessive HTTP headers correctly. This led to a miscounting of
active HTTP/2 streams which in turn led to the use of an incorrect
infinite timeout which allowed connections to remain open which
should have been closed.


Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 11.0.0-M21 or later
- Upgrade to Apache Tomcat 10.1.25 or later
- Upgrade to Apache Tomcat 9.0.90 or later


Credit:
This vulnerability was reported responsibly to the Tomcat security
team by devme4f from VNPT-VCI.


History:
2024-07-03 Original advisory


References:
[1] https://tomcat.apache.org/security-11.html
[2] https://tomcat.apache.org/security-10.html
[3] https://tomcat.apache.org/security-9.html


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