rhsa-2019_2692
Vulnerability from csaf_redhat
Published
2019-09-09 20:13
Modified
2024-12-15 18:54
Summary
Red Hat Security Advisory: nghttp2 security update
Notes
Topic
An update for nghttp2 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.
Security Fix(es):
* HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511)
* HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"url": "https://access.redhat.com/errata/RHSA-2019:2692"
},
{
"category": "workaround",
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
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{
"category": "impact",
"details": "Important"
}
],
"title": "HTTP/2: large amount of data requests leads to denial of service"
},
{
"acknowledgments": [
{
"names": [
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]
}
],
"cve": "CVE-2019-9513",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2019-08-01T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1735741"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in HTTP/2. An attacker, using PRIORITY frames to flood the system, could cause excessive CPU usage and starvation of other clients. The largest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "HTTP/2: flood using PRIORITY frames results in excessive resource consumption",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw has no available mitigation for packages nghttp2 and nodejs. Both packages will be updated once the available fixes are released for Red Hat Enterprise Linux and Red Hat Software Collections.\n\nThe nodejs RPM shipped in OpenShift Container Platform 3.9 and 3.10 is not affected by this flaw as it does not contain the vulnerable code.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-9513"
},
{
"category": "external",
"summary": "RHBZ#1735741",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1735741"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-9513",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-9513"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-9513",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9513"
},
{
"category": "external",
"summary": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md",
"url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"
},
{
"category": "external",
"summary": "https://nghttp2.org/blog/2019/08/19/nghttp2-v1-39-2/",
"url": "https://nghttp2.org/blog/2019/08/19/nghttp2-v1-39-2/"
},
{
"category": "external",
"summary": "https://nodejs.org/en/blog/vulnerability/aug-2019-security-releases/",
"url": "https://nodejs.org/en/blog/vulnerability/aug-2019-security-releases/"
},
{
"category": "external",
"summary": "https://www.nginx.com/blog/nginx-updates-mitigate-august-2019-http-2-vulnerabilities/",
"url": "https://www.nginx.com/blog/nginx-updates-mitigate-august-2019-http-2-vulnerabilities/"
}
],
"release_date": "2019-08-13T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-09-09T20:13:58+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
"cvss_v3": {
"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"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "HTTP/2: flood using PRIORITY frames results in excessive resource consumption"
}
]
}
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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.