CVE-2024-34750

Apache Tomcat: HTTP/2 excess header handling DoS

Description

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. 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. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Users are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 19.66% Top 5%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Tomcat
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l vendor advisory
https://security.netapp.com/advisory/ntap-20240816-0004/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2024-34750?
CVE-2024-34750 has been scored as a high severity vulnerability.
How to fix CVE-2024-34750?
To fix CVE-2024-34750, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-34750 being actively exploited in the wild?
It is possible that CVE-2024-34750 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-34750?
CVE-2024-34750 affects Apache Software Foundation Apache Tomcat.
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