rhsa-2022_0499
Vulnerability from csaf_redhat
Published
2022-02-09 13:55
Modified
2024-11-06 00:27
Summary
Red Hat Security Advisory: .NET 5.0 on RHEL 7 security and bugfix update
Notes
Topic
An update for .NET 5.0 is now available for Red Hat Enterprise Linux 7.
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
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 5.0.211 and .NET Runtime 5.0.14.
Security Fix(es):
* dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service (CVE-2022-219862)
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": "A vulnerability was found in dotnet\u2019s ASP.NET Core Krestel when pooling HTTP/2 and HTTP/3 headers. This flaw allows a remote, unauthenticated attacker to cause a denial of service.",
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"text": "dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service",
"title": "Vulnerability summary"
},
{
"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-2022-21986"
},
{
"category": "external",
"summary": "RHBZ#2051490",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2051490"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-21986",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-21986"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-21986",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21986"
},
{
"category": "external",
"summary": "https://github.com/dotnet/announcements/issues/207",
"url": "https://github.com/dotnet/announcements/issues/207"
},
{
"category": "external",
"summary": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21986"
}
],
"release_date": "2022-02-08T18:19:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-02-09T13:55:07+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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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"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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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service"
}
]
}
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- 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.