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(CVE-2019-9511)
Vulnerability from cleanstart – Published: 2026-07-30 07:10 – Updated: 2026-09-18 11:59 – Source website
Withdrawn 2026-09-18
VLAI
Summary
Security fixes in nginx 1.16.1-r0
Details
Package nginx version 1.16.1-r0 fixes 3 vulnerabilities: CVE-2019-9511, CVE-2019-9513, CVE-2019-9516
References
| URL | Type | |
|---|---|---|
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"details": "Package nginx version 1.16.1-r0 fixes 3 vulnerabilities: CVE-2019-9511, CVE-2019-9513, CVE-2019-9516",
"id": "CLEANSTART-2026-SL54475",
"modified": "2026-09-18T11:59:01.768079Z",
"published": "2026-07-30T07:10:53Z",
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"withdrawn": "2026-09-18T11:59:01.768079Z"
}
CVE-2019-9511 (GCVE-0-2019-9511)
Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI
EPSS
VEX
Title
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service
Summary
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
47 references
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CVE-2019-9513 (GCVE-0-2019-9513)
Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI
EPSS
VEX
Title
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service
Summary
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
42 references
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CVE-2019-9516 (GCVE-0-2019-9516)
Vulnerability from cvelistv5 – Published: 2019-08-13 20:50 – Updated: 2024-08-04 21:54
VLAI
EPSS
VEX
Title
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service
Summary
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.
Severity
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
37 references
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"TITLE": "Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Thanks to Jonathan Looney of Netflix for reporting this vulnerability."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.7"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-400 Uncontrolled Resource Consumption"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "VU#605641",
"refsource": "CERT-VN",
"url": "https://kb.cert.org/vuls/id/605641/"
},
{
"name": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md",
"refsource": "MISC",
"url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"
},
{
"name": "20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
"refsource": "BUGTRAQ",
"url": "https://seclists.org/bugtraq/2019/Aug/24"
},
{
"name": "USN-4099-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4099-1/"
},
{
"name": "20190816 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2019/Aug/16"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_19_33",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_19_33"
},
{
"name": "https://support.f5.com/csp/article/K02591030",
"refsource": "CONFIRM",
"url": "https://support.f5.com/csp/article/K02591030"
},
{
"name": "FEDORA-2019-befd924cfe",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/"
},
{
"name": "20190822 [SECURITY] [DSA 4505-1] nginx security update",
"refsource": "BUGTRAQ",
"url": "https://seclists.org/bugtraq/2019/Aug/40"
},
{
"name": "DSA-4505",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2019/dsa-4505"
},
{
"name": "https://security.netapp.com/advisory/ntap-20190823-0002/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20190823-0002/"
},
{
"name": "https://security.netapp.com/advisory/ntap-20190823-0005/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20190823-0005/"
},
{
"name": "FEDORA-2019-5a6a7bc12c",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/"
},
{
"name": "FEDORA-2019-6a2980de56",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/"
},
{
"name": "FEDORA-2019-4427fd65be",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/"
},
{
"name": "FEDORA-2019-63ba15cc83",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/"
},
{
"name": "FEDORA-2019-7a0b45fdc4",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/"
},
{
"name": "openSUSE-SU-2019:2120",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html"
},
{
"name": "openSUSE-SU-2019:2114",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"
},
{
"name": "openSUSE-SU-2019:2115",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"
},
{
"name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296",
"refsource": "CONFIRM",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296"
},
{
"name": "RHSA-2019:2745",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2745"
},
{
"name": "RHSA-2019:2746",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2746"
},
{
"name": "RHSA-2019:2775",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2775"
},
{
"name": "RHSA-2019:2799",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2799"
},
{
"name": "RHSA-2019:2925",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2925"
},
{
"name": "RHSA-2019:2939",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2939"
},
{
"name": "RHSA-2019:2946",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2946"
},
{
"name": "RHSA-2019:2950",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2950"
},
{
"name": "RHSA-2019:2955",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2955"
},
{
"name": "RHSA-2019:2966",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2966"
},
{
"name": "openSUSE-SU-2019:2264",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html"
},
{
"name": "https://support.f5.com/csp/article/K02591030?utm_source=f5support\u0026amp;utm_medium=RSS",
"refsource": "CONFIRM",
"url": "https://support.f5.com/csp/article/K02591030?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"name": "RHSA-2019:3933",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:3933"
},
{
"name": "RHSA-2019:3935",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:3935"
},
{
"name": "RHSA-2019:3932",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:3932"
},
{
"name": "FEDORA-2021-d5b2c18fe6",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H472D5HPXN6RRXCNFML3BK5OYC52CXF2/"
}
]
},
"source": {
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2019-9516",
"datePublished": "2019-08-13T20:50:59.000Z",
"dateReserved": "2019-03-01T00:00:00.000Z",
"dateUpdated": "2024-08-04T21:54:44.285Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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