MediumFix available
Red Hat Security Advisory: .NET Core 3.1 security and bugfix update
Type: advisorySources: OSV
- Products
- aspnetcore-runtime-3.1, aspnetcore-targeting-pack-3.1, dotnet-apphost-pack-3.1, dotnet-apphost-pack-3.1-debuginfo, dotnet-hostfxr-3.1, dotnet-hostfxr-3.1-debuginfo, dotnet-runtime-3.1, dotnet-runtime-3.1-debuginfo, dotnet-sdk-3.1, dotnet-sdk-3.1-debuginfo, dotnet-targeting-pack-3.1, dotnet-templates-3.1, dotnet3.1, dotnet3.1-debuginfo, dotnet3.1-debugsource
- Affected versions
- Not specified
- Fixed versions
- 0:3.1.116-1.el8_4, 0:3.1.16-1.el8_4
- CVEs
- CVE-2021-31957
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:04 UTC · Revision 1
Source evidence
Red Hat Security Advisory: .NET Core 3.1 security and bugfix update
core-osv · Original sourcePublished 16 Sept 2024, 06:00 UTC
Red Hat Security Advisory: .NET Core 3.1 security and bugfix update
osv:RHSA-2021:2352
aspnetcore-runtime-3.1
Fixed versions: 0:3.1.16-1.el8_4
aspnetcore-targeting-pack-3.1
Fixed versions: 0:3.1.16-1.el8_4
dotnet-apphost-pack-3.1
Fixed versions: 0:3.1.16-1.el8_4
dotnet-apphost-pack-3.1-debuginfo
Fixed versions: 0:3.1.16-1.el8_4
dotnet-hostfxr-3.1
Fixed versions: 0:3.1.16-1.el8_4
dotnet-hostfxr-3.1-debuginfo
Fixed versions: 0:3.1.16-1.el8_4
dotnet-runtime-3.1
Fixed versions: 0:3.1.16-1.el8_4
dotnet-runtime-3.1-debuginfo
Fixed versions: 0:3.1.16-1.el8_4
dotnet-sdk-3.1
Fixed versions: 0:3.1.116-1.el8_4
dotnet-sdk-3.1-debuginfo
Fixed versions: 0:3.1.116-1.el8_4
dotnet-targeting-pack-3.1
Fixed versions: 0:3.1.16-1.el8_4
dotnet-templates-3.1
Fixed versions: 0:3.1.116-1.el8_4
dotnet3.1
Fixed versions: 0:3.1.116-1.el8_4
dotnet3.1-debuginfo
Fixed versions: 0:3.1.116-1.el8_4
dotnet3.1-debugsource
Fixed versions: 0:3.1.116-1.el8_4
Complete source record
{
"id": "ea96efff66b1cb55ad04557afbbc92948b70aa3c9bd9fded32e3650c711e7c79",
"url": "https://osv.dev/vulnerability/RHSA-2021%3A2352",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: .NET Core 3.1 security and bugfix update",
"summary": "Red Hat Security Advisory: .NET Core 3.1 security and bugfix update",
"evidence": "osv:RHSA-2021:2352",
"products": [
{
"name": {
"value": "aspnetcore-runtime-3.1",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "aspnetcore-targeting-pack-3.1",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-apphost-pack-3.1",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-apphost-pack-3.1-debuginfo",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-hostfxr-3.1",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-hostfxr-3.1-debuginfo",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-runtime-3.1",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-runtime-3.1-debuginfo",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-sdk-3.1",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-sdk-3.1-debuginfo",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-targeting-pack-3.1",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.16-1.el8_4",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet-templates-3.1",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet3.1",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet3.1-debuginfo",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "dotnet3.1-debugsource",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:3.1.116-1.el8_4",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "RHSA-2021:2352",
"aliases": [
"RHSA-2021:2352"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "aspnetcore-runtime-3.1",
"purl": "pkg:rpm/redhat/aspnetcore-runtime-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "aspnetcore-targeting-pack-3.1",
"purl": "pkg:rpm/redhat/aspnetcore-targeting-pack-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet-apphost-pack-3.1",
"purl": "pkg:rpm/redhat/dotnet-apphost-pack-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet-apphost-pack-3.1-debuginfo",
"purl": "pkg:rpm/redhat/dotnet-apphost-pack-3.1-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet-hostfxr-3.1",
"purl": "pkg:rpm/redhat/dotnet-hostfxr-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet-hostfxr-3.1-debuginfo",
"purl": "pkg:rpm/redhat/dotnet-hostfxr-3.1-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.16-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet-runtime-3.1",
"purl": "pkg:rpm/redhat/dotnet-runtime-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
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"events": [
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}
],
"package": {
"name": "dotnet-runtime-3.1-debuginfo",
"purl": "pkg:rpm/redhat/dotnet-runtime-3.1-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
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}
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{
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],
"package": {
"name": "dotnet-sdk-3.1",
"purl": "pkg:rpm/redhat/dotnet-sdk-3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
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"package": {
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},
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],
"package": {
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"purl": "pkg:rpm/redhat/dotnet-templates-3.1",
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{
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],
"package": {
"name": "dotnet3.1",
"purl": "pkg:rpm/redhat/dotnet3.1",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
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{
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},
{
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}
]
}
],
"package": {
"name": "dotnet3.1-debuginfo",
"purl": "pkg:rpm/redhat/dotnet3.1-debuginfo",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:3.1.116-1.el8_4"
}
]
}
],
"package": {
"name": "dotnet3.1-debugsource",
"purl": "pkg:rpm/redhat/dotnet3.1-debugsource",
"ecosystem": "Red Hat:enterprise_linux:8::appstream"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2021:2352.json"
}
}
],
"modified": "2026-10-08T10:02:27Z",
"provider": "osv",
"upstream": [
"CVE-2021-31957"
],
"references": [
"https://access.redhat.com/errata/RHSA-2021:2352",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=1966990",
"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2352.json",
"https://access.redhat.com/security/cve/CVE-2021-31957",
"https://www.cve.org/CVERecord?id=CVE-2021-31957",
"https://nvd.nist.gov/vuln/detail/CVE-2021-31957",
"https://github.com/dotnet/announcements/issues/189",
"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31957"
]
},
"related_cves": [
{
"value": "CVE-2021-31957",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 99025,
"published_at": "2024-09-16T06:00:05+00:00"
}