RLSA-2025:18148

Synopsis

Important: .NET 8.0 security update

Description

.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 8.0.121 and .NET Runtime 8.0.21.Security Fix(es):

* dotnet: .NET Information Disclosure Vulnerability (CVE-2025-55248)

* dotnet: .NET Security Feature Bypass Vulnerability (CVE-2025-55315)

* dotnet: .NET Denial of Service Vulnerability (CVE-2025-55247)

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.

Affected products

Rocky Linux 8 aarch64 Rocky Linux 8 x86_64

Fixes

2403083 2403085 2403086

CVEs

CVE-2025-55247 CVE-2025-55248 CVE-2025-55315

Affected packages

Rocky Linux 8 aarch64 - AppStream

aspnetcore-runtime-8.0-0:8.0.21-1.el8_10.aarch64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el8_10.aarch64.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet8.0-0:8.0.121-1.el8_10.src.rpm dotnet8.0-debuginfo-0:8.0.121-1.el8_10.aarch64.rpm dotnet8.0-debugsource-0:8.0.121-1.el8_10.aarch64.rpm dotnet-apphost-pack-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el8_10.aarch64.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el8_10.aarch64.rpm dotnet-runtime-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el8_10.aarch64.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet-sdk-8.0-0:8.0.121-1.el8_10.aarch64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el8_10.aarch64.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el8_10.aarch64.rpm dotnet-targeting-pack-8.0-0:8.0.21-1.el8_10.aarch64.rpm dotnet-templates-8.0-0:8.0.121-1.el8_10.aarch64.rpm

Rocky Linux 8 x86_64 - AppStream

aspnetcore-runtime-8.0-0:8.0.21-1.el8_10.x86_64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el8_10.x86_64.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet8.0-0:8.0.121-1.el8_10.src.rpm dotnet8.0-debuginfo-0:8.0.121-1.el8_10.x86_64.rpm dotnet8.0-debugsource-0:8.0.121-1.el8_10.x86_64.rpm dotnet-apphost-pack-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el8_10.x86_64.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el8_10.x86_64.rpm dotnet-runtime-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el8_10.x86_64.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet-sdk-8.0-0:8.0.121-1.el8_10.x86_64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el8_10.x86_64.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el8_10.x86_64.rpm dotnet-targeting-pack-8.0-0:8.0.21-1.el8_10.x86_64.rpm dotnet-templates-8.0-0:8.0.121-1.el8_10.x86_64.rpm

Rocky Linux 8 aarch64 - PowerTools

dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el8_10.aarch64.rpm

Rocky Linux 8 x86_64 - PowerTools

dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el8_10.x86_64.rpm