HighFix available
Red Hat Security Advisory: .NET 5.0 security and bugfix update
Type: advisorySources: OSV
- Products
- aspnetcore-runtime-5.0, aspnetcore-targeting-pack-5.0, dotnet, dotnet-apphost-pack-5.0, dotnet-apphost-pack-5.0-debuginfo, dotnet-host, dotnet-host-debuginfo, dotnet-hostfxr-5.0, dotnet-hostfxr-5.0-debuginfo, dotnet-runtime-5.0, dotnet-runtime-5.0-debuginfo, dotnet-sdk-5.0, dotnet-sdk-5.0-debuginfo, dotnet-targeting-pack-5.0, dotnet-templates-5.0, dotnet5.0, dotnet5.0-debuginfo, dotnet5.0-debugsource, netstandard-targeting-pack-2.1
- Affected versions
- Not specified
- Fixed versions
- 0:5.0.206-1.el8_4, 0:5.0.9-1.el8_4
- CVEs
- CVE-2021-26423, CVE-2021-34485, CVE-2021-34532
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:04 UTC · Revision 1
Source evidence
Red Hat Security Advisory: .NET 5.0 security and bugfix update
core-osv · Original sourcePublished 16 Sept 2024, 06:15 UTC
Red Hat Security Advisory: .NET 5.0 security and bugfix update
osv:RHSA-2021:3148
aspnetcore-runtime-5.0
Fixed versions: 0:5.0.9-1.el8_4
aspnetcore-targeting-pack-5.0
Fixed versions: 0:5.0.9-1.el8_4
dotnet
Fixed versions: 0:5.0.206-1.el8_4
dotnet-apphost-pack-5.0
Fixed versions: 0:5.0.9-1.el8_4
dotnet-apphost-pack-5.0-debuginfo
Fixed versions: 0:5.0.9-1.el8_4
dotnet-host
Fixed versions: 0:5.0.9-1.el8_4
dotnet-host-debuginfo
Fixed versions: 0:5.0.9-1.el8_4
dotnet-hostfxr-5.0
Fixed versions: 0:5.0.9-1.el8_4
dotnet-hostfxr-5.0-debuginfo
Fixed versions: 0:5.0.9-1.el8_4
dotnet-runtime-5.0
Fixed versions: 0:5.0.9-1.el8_4
dotnet-runtime-5.0-debuginfo
Fixed versions: 0:5.0.9-1.el8_4
dotnet-sdk-5.0
Fixed versions: 0:5.0.206-1.el8_4
dotnet-sdk-5.0-debuginfo
Fixed versions: 0:5.0.206-1.el8_4
dotnet-targeting-pack-5.0
Fixed versions: 0:5.0.9-1.el8_4
dotnet-templates-5.0
Fixed versions: 0:5.0.206-1.el8_4
dotnet5.0
Fixed versions: 0:5.0.206-1.el8_4
dotnet5.0-debuginfo
Fixed versions: 0:5.0.206-1.el8_4
dotnet5.0-debugsource
Fixed versions: 0:5.0.206-1.el8_4
netstandard-targeting-pack-2.1
Fixed versions: 0:5.0.206-1.el8_4
Complete source record
{
"id": "f7c2e2e83a8fe3b56fbb647ff4811898ef1f8c9a191afe6fd0f63edf5337f1ae",
"url": "https://osv.dev/vulnerability/RHSA-2021%3A3148",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: .NET 5.0 security and bugfix update",
"summary": "Red Hat Security Advisory: .NET 5.0 security and bugfix update",
"evidence": "osv:RHSA-2021:3148",
"products": [
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{
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"evidence": "/affected/1/ranges"
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{
"name": {
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"evidence": "/affected/2/package/name"
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{
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"evidence": "/affected/3/package/name"
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],
"affected_versions": []
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{
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"evidence": "/affected/4/package/name"
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"prerequisites": [],
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"evidence": "/affected/4/ranges"
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],
"affected_versions": []
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{
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"evidence": "/affected/5/package/name"
},
"prerequisites": [],
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],
"affected_versions": []
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{
"name": {
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"evidence": "/affected/6/package/name"
},
"prerequisites": [],
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"evidence": "/affected/6/ranges"
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],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-hostfxr-5.0-debuginfo",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/8/ranges"
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],
"affected_versions": []
},
{
"name": {
"value": "dotnet-runtime-5.0",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.9-1.el8_4",
"evidence": "/affected/9/ranges"
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],
"affected_versions": []
},
{
"name": {
"value": "dotnet-runtime-5.0-debuginfo",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.9-1.el8_4",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-sdk-5.0",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-sdk-5.0-debuginfo",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-targeting-pack-5.0",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-templates-5.0",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet5.0",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet5.0-debuginfo",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet5.0-debugsource",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "netstandard-targeting-pack-2.1",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:5.0.206-1.el8_4",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "RHSA-2021:3148",
"aliases": [
"RHSA-2021:3148"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
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"events": [
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"introduced": "0"
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{
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],
"package": {
"name": "aspnetcore-runtime-5.0",
"purl": "pkg:rpm/redhat/aspnetcore-runtime-5.0",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
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}
},
{
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"package": {
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],
"package": {
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"purl": "pkg:rpm/redhat/dotnet",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
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{
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],
"package": {
"name": "dotnet-apphost-pack-5.0",
"purl": "pkg:rpm/redhat/dotnet-apphost-pack-5.0",
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},
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"package": {
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"package": {
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"package": {
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{
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"ecosystem": "Red Hat:enterprise_linux:8::appstream"
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],
"package": {
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"purl": "pkg:rpm/redhat/dotnet-sdk-5.0-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
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],
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}
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],
"package": {
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"purl": "pkg:rpm/redhat/dotnet-templates-5.0",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
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"purl": "pkg:rpm/redhat/dotnet5.0-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
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}
},
{
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],
"package": {
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"purl": "pkg:rpm/redhat/dotnet5.0-debugsource",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:3148.json"
}
},
{
"ranges": [
{
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"events": [
{
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]
}
],
"package": {
"name": "netstandard-targeting-pack-2.1",
"purl": "pkg:rpm/redhat/netstandard-targeting-pack-2.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:3148.json"
}
}
],
"modified": "2026-10-08T10:02:34Z",
"provider": "osv",
"upstream": [
"CVE-2021-26423",
"CVE-2021-34485",
"CVE-2021-34532"
],
"references": [
"https://access.redhat.com/errata/RHSA-2021:3148",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=1990286",
"https://bugzilla.redhat.com/show_bug.cgi?id=1990295",
"https://bugzilla.redhat.com/show_bug.cgi?id=1990300",
"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3148.json",
"https://access.redhat.com/security/cve/CVE-2021-26423",
"https://www.cve.org/CVERecord?id=CVE-2021-26423",
"https://nvd.nist.gov/vuln/detail/CVE-2021-26423",
"https://github.com/dotnet/announcements/issues/194",
"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26423",
"https://access.redhat.com/security/cve/CVE-2021-34485",
"https://www.cve.org/CVERecord?id=CVE-2021-34485",
"https://nvd.nist.gov/vuln/detail/CVE-2021-34485",
"https://github.com/dotnet/announcements/issues/196",
"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34485",
"https://access.redhat.com/security/cve/CVE-2021-34532",
"https://www.cve.org/CVERecord?id=CVE-2021-34532",
"https://nvd.nist.gov/vuln/detail/CVE-2021-34532",
"https://github.com/dotnet/announcements/issues/195",
"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34532"
]
},
"related_cves": [
{
"value": "CVE-2021-26423",
"evidence": "/upstream"
},
{
"value": "CVE-2021-34485",
"evidence": "/upstream"
},
{
"value": "CVE-2021-34532",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 99032,
"published_at": "2024-09-16T06:15:36+00:00"
}