gsd-2019-9517
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2019-9517",
"description": "Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.",
"id": "GSD-2019-9517",
"references": [
"https://www.suse.com/security/cve/CVE-2019-9517.html",
"https://www.debian.org/security/2019/dsa-4509",
"https://access.redhat.com/errata/RHSA-2020:1445",
"https://access.redhat.com/errata/RHSA-2020:0983",
"https://access.redhat.com/errata/RHSA-2020:0922",
"https://access.redhat.com/errata/RHSA-2019:3935",
"https://access.redhat.com/errata/RHSA-2019:3933",
"https://access.redhat.com/errata/RHSA-2019:3932",
"https://access.redhat.com/errata/RHSA-2019:2955",
"https://access.redhat.com/errata/RHSA-2019:2950",
"https://access.redhat.com/errata/RHSA-2019:2949",
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"https://access.redhat.com/errata/RHSA-2019:2939",
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"https://ubuntu.com/security/CVE-2019-9517",
"https://advisories.mageia.org/CVE-2019-9517.html",
"https://alas.aws.amazon.com/cve/html/CVE-2019-9517.html",
"https://linux.oracle.com/cve/CVE-2019-9517.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
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"id": "GSD-2019-9517",
"modified": "2023-12-13T01:23:47.392520Z",
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}
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"credit": [
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"value": "Thanks to Jonathan Looney of Netflix for reporting this vulnerability."
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"authentication": "NONE",
"availabilityImpact": "COMPLETE",
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
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},
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"obtainAllPrivilege": false,
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"severity": "HIGH",
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},
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"attackVector": "NETWORK",
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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}
},
"lastModifiedDate": "2023-01-19T20:13Z",
"publishedDate": "2019-08-13T21:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.