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CVE-2024-31309

7.5 · HIGH

HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server.

Published Apr 10, 2024CWE-20EPSS 94.62%

Overview

CVE-2024-31309 is a high-severity vulnerability. It was published on April 10, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server.  Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected.

Users can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute.  ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.

Users are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2024/04/03/16Refwww.openwall.com/lists/oss-security/2024/04/10/7Reflists.apache.org/thread/f9qh3g3jvy153wh82pz4onrfj1wh13kcReflists.debian.org/debian-lts-announce/2024/04/msg00021.htmlReflists.fedoraproject.org/archives/list/[email protected]/message/PBKLPQ6ECG4PGEPRCYI3Y3OITNDEFCCV/Reflists.fedoraproject.org/archives/list/[email protected]/message/QV77HYM7ARSTL3B6U3IFG7PHDU65WL4I/Reflists.fedoraproject.org/archives/list/[email protected]/message/T3XON6RM5ZKCZ6K6NB7BOTAWMJQKXJDO/Refwww.openwall.com/lists/oss-security/2024/04/03/16Refwww.openwall.com/lists/oss-security/2024/04/10/7Reflists.apache.org/thread/f9qh3g3jvy153wh82pz4onrfj1wh13kc

How CyberStrike helps

Frequently asked questions

What is CVE-2024-31309?

CVE-2024-31309 is a high-severity vulnerability. It was published on April 10, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-31309?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-31309?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-31309?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-31309 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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