CVE-2023-21538
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
5.5
Description
RHSA-2023:0079: .NET 6.0 security, bug fix, and enhancement update (Moderate)
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | Microsoft.NETCore.App.Runtime.linux-arm | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-arm64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-arm | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-arm64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-musl-x64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.linux-x64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.osx-arm64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.osx-x64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.win-arm | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.win-arm64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.win-x64 | >=6.0.0,<6.0.13 | 6.0.13 |
| NuGet | Microsoft.NETCore.App.Runtime.win-x86 | >=6.0.0,<6.0.13 | 6.0.13 |
References
- https://access.redhat.com/errata/RHSA-2023:0077
- https://errata.rockylinux.org/RLSA-2023:0079
- https://errata.rockylinux.org/RLSA-2023:0077
- https://github.com/dotnet/runtime/security/advisories/GHSA-8f7f-vqg5-jrv9
- https://nvd.nist.gov/vuln/detail/CVE-2023-21538
- https://github.com/dotnet/runtime
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GV5QDWYJ4C26JB7RTI55Z4O76WSH4FMV
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZI27LYW5C4Z4644WYIQWOXBZL7WIP2X6
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21538
- https://access.redhat.com/errata/RHSA-2023:0079
- https://bugzilla.redhat.com/2158342
- https://errata.almalinux.org/8/ALSA-2023-0079.html
- https://errata.almalinux.org/9/ALSA-2023-0077.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.