Description
A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | .NET Core | 2.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mono | No fix yet | — |
| Ubuntu 26.04 LTS | mono | No fix yet | — |
| Ubuntu 25.10 | mono | No fix yet | — |
| Ubuntu 24.04 LTS | mono | No fix yet | — |
| Ubuntu 22.04 LTS | mono | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | mono | No fix yet | — |
| Ubuntu 18.04 LTS | mono +1 | No fix yet | — |
| Ubuntu 16.04 LTS | mono +1 | No fix yet | — |
| Ubuntu 14.04 LTS | mono | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Dotnet 2 | rh-dotnet21-dotnet +2 | 2.1.500-5.el7 | RHSA-2018:3676 |
| Red Hat Rhel Dotnet 2 | rh-dotnet21-dotnet-host +1 | 2.1.6-5.el7 | RHSA-2018:3676 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Microsoft.NETCore.App | >= 2.1.0, < 2.1.7 | 2.1.7 | GHSA-5633-f33j-c6f7 |
Advisories 1
- RHSA-2018:3676 Red Hat Security Advisory: .NET Core on Red Hat Enterprise Linux security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8416
- 105798 vdb-entry
- RHSA-2018:3676 vendor-advisory
- 1042128 vdb-entry