CVE-2025-8671 (GCVE-0-2025-8671)
Vulnerability from cvelistv5
Published
2025-08-13 12:03
Modified
2025-08-17 14:26
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS). By opening streams and then rapidly triggering the server to reset them—using malformed frames or flow control errors—an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.
References
Impacted products
Vendor Product Version
SUSE Linux Enterprise Module for Development Tools Version: 15 SP2   < 15-SP5
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   SUSE Linux Enterprise High Performance Computing (HPC) Version: 15   < 15 SP5
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   Varnish Software Varnish Enterprise Version: 6.0.x   <
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   Varnish Software Varnish Cache Version: 6.0LTS   <
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   Varnish Software Varnish Cache Version: 5.x   <
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   Fastly H20 Version: 579ecfa
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   Wind River Linux Version: LTS22   <
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   SUSE Linux Enterprise Desktop Version: 15 SP6   < 15 SP7
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   SUSE Linux Enterprise High Performance Computing Version: 15 SP3   < 15 SP7
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   SUSE Linux Enterprise Module for Dev Tools Version: 15 SP3   < 15 SP7
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   SUSE Linux Enterprise Module for Package Hub Version: 15 SP5   < 15 SP7
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   SUSE Linux Enterprise Server Version: 12 SP5   < 15 SP7
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   SUSE Linux Enterprise Server for SAP Applications Version: 15 SP6   < 15 SP7
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   SUSE Linux SUSE Manager Server Version: 4.3
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   SUSE Linux SUSE Manager Server LTS Version: 4.3
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   SUSE Linux SUSE Manager Proxy Version: 4.3
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   SUSE Linux SUSE Manager Retail Branch Server Version: 4.3
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   SUSE Linux openSUSE Leap Version: 15.6
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mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS).  By opening streams and then rapidly triggering the server to reset them\\u2014using malformed frames or flow control errors\\u2014an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-404 Improper Resource Shutdown or Release\"}]}], \"providerMetadata\": {\"orgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"shortName\": \"certcc\", \"dateUpdated\": \"2025-08-13T18:19:45.844Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-8671\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-17T14:26:49.121Z\", \"dateReserved\": \"2025-08-06T11:52:46.667Z\", \"assignerOrgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"datePublished\": \"2025-08-13T12:03:37.167Z\", \"assignerShortName\": \"certcc\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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