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CVE-2024-31309 (GCVE-0-2024-31309)

Vulnerability from cvelistv5 – Published: 2024-04-10 12:07 – Updated: 2025-11-04 18:30
VLAI
Title
Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-12 18:21 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Traffic Server Affected: 8.0.0 , ≤ 8.1.9 (semver)
Affected: 9.0.0 , ≤ 9.2.3 (semver)
guessed Create a notification for this product.
apache traffic_server Affected: 8.0.0 , ≤ 8.1.9 (custom)
Affected: 9.0.0 , ≤ 9.2.3 (custom)
    cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Bartek Nowotarski
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2025-11-21T14:50:41+00:00",
      "cve": "CVE-2024-31309",
      "id": "CVE-2024-31309",
      "initial_release_date": "2024-04-03T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "trafficserver: CONTINUATION frames DoS",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-31309.json",
      "version": "3"
    },
    "vulnrichment": {
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\"http://www.openwall.com/lists/oss-security/2024/04/03/16\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/04/10/7\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"HTTP/2 CONTINUATION\\u00a0DoS attack can cause Apache Traffic Server to consume more resources on the server.\\u00a0 Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are\\u00a0affected.\\n\\nUsers can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute. \\u00a0ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.\\nUsers are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eHTTP/2 \u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eCONTINUATION\u003c/span\u003e\u0026nbsp;DoS attack can cause Apache Traffic Server to consume more resources on the server.\u0026nbsp; Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are\u0026nbsp;affected.\u003c/p\u003eUsers can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute. \u0026nbsp;ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.\u003cbr\u003e\u003cp\u003eUsers are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20 Improper Input Validation\"}]}], \"providerMetadata\": {\"orgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"shortName\": \"apache\", \"dateUpdated\": \"2024-04-10T12:07:16.975Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-31309\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-12T18:24:22.338Z\", \"dateReserved\": \"2024-03-29T18:52:13.204Z\", \"assignerOrgId\": \"f0158376-9dc2-43b6-827c-5f631a4d8d09\", \"datePublished\": \"2024-04-10T12:07:16.975Z\", \"assignerShortName\": \"apache\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.