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BELL-CVE-2019-9515 (CVE-2019-9515)
Vulnerability from osv_bellsoft – Published: 2023-08-31 12:15 – Updated: 2026-02-18 06:09 – Source website
Withdrawn 2026-02-18
VLAI
Summary
CVE-2019-9515 does not affect BellSoft software
Severity
7.5 (High)
References
| URL | Type | |
|---|---|---|
{
"id": "BELL-CVE-2019-9515",
"modified": "2026-02-18T06:09:38.477770Z",
"published": "2023-08-31T12:15:50.625698Z",
"references": [
{
"type": "ADVISORY",
"url": "https://docs.bell-sw.com/security/cves/CVE-2019-9515"
}
],
"schema_version": "1.7.4",
"severity": [
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "CVE-2019-9515 does not affect BellSoft software",
"upstream": [
"CVE-2019-9515"
],
"withdrawn": "2026-02-18T06:09:38.477770Z"
}
CVE-2019-9515 (GCVE-0-2019-9515)
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 settings flood, potentially leading to a denial of service
Summary
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. 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
38 references
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"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both."
}
]
},
"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": "[trafficserver-dev] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
"refsource": "MLIST",
"url": "https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7@%3Cdev.trafficserver.apache.org%3E"
},
{
"name": "[trafficserver-users] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
"refsource": "MLIST",
"url": "https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04@%3Cusers.trafficserver.apache.org%3E"
},
{
"name": "[trafficserver-announce] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
"refsource": "MLIST",
"url": "https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19@%3Cannounce.trafficserver.apache.org%3E"
},
{
"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": "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/K50233772",
"refsource": "CONFIRM",
"url": "https://support.f5.com/csp/article/K50233772"
},
{
"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": "20190825 [SECURITY] [DSA 4508-1] h2o security update",
"refsource": "BUGTRAQ",
"url": "https://seclists.org/bugtraq/2019/Aug/43"
},
{
"name": "DSA-4508",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2019/dsa-4508"
},
{
"name": "DSA-4520",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2019/dsa-4520"
},
{
"name": "20190910 [SECURITY] [DSA 4520-1] trafficserver security update",
"refsource": "BUGTRAQ",
"url": "https://seclists.org/bugtraq/2019/Sep/18"
},
{
"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-2019:2766",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2766"
},
{
"name": "RHSA-2019:2796",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2796"
},
{
"name": "RHSA-2019:2861",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2861"
},
{
"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-2019:2955",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:2955"
},
{
"name": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp;utm_medium=RSS",
"refsource": "CONFIRM",
"url": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"name": "RHSA-2019:3892",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:3892"
},
{
"name": "RHSA-2019:4018",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4018"
},
{
"name": "RHSA-2019:4019",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4019"
},
{
"name": "RHSA-2019:4021",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4021"
},
{
"name": "RHSA-2019:4020",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4020"
},
{
"name": "RHSA-2019:4045",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4045"
},
{
"name": "RHSA-2019:4042",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4042"
},
{
"name": "RHSA-2019:4040",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4040"
},
{
"name": "RHSA-2019:4041",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4041"
},
{
"name": "RHSA-2019:4352",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2019:4352"
},
{
"name": "RHSA-2020:0727",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2020:0727"
},
{
"name": "USN-4308-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4308-1/"
}
]
},
"source": {
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2019-9515",
"datePublished": "2019-08-13T20:50:59.000Z",
"dateReserved": "2019-03-01T00:00:00.000Z",
"dateUpdated": "2024-08-04T21:54:44.327Z",
"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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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.
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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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