RLSA-2025:18149

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 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2403086 2403085 2403083

CVEs

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

Affected packages

Rocky Linux 9 x86_64 - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el9_6.x86_64.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm

Rocky Linux 9 ppc64le - AppStream

dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el9_6.ppc64le.rpm aspnetcore-runtime-8.0-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-sdk-8.0-0:8.0.121-1.el9_6.ppc64le.rpm dotnet-runtime-8.0-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el9_6.ppc64le.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el9_6.ppc64le.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-targeting-pack-8.0-0:8.0.21-1.el9_6.ppc64le.rpm dotnet-templates-8.0-0:8.0.121-1.el9_6.ppc64le.rpm dotnet-apphost-pack-8.0-0:8.0.21-1.el9_6.ppc64le.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el9_6.ppc64le.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el9_6.ppc64le.rpm

Rocky Linux 9 s390x - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el9_6.s390x.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm

Rocky Linux 9 aarch64 - AppStream

dotnet-apphost-pack-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el9_6.aarch64.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el9_6.aarch64.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el9_6.aarch64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el9_6.aarch64.rpm dotnet-runtime-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el9_6.aarch64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm dotnet-templates-8.0-0:8.0.121-1.el9_6.aarch64.rpm dotnet-sdk-8.0-0:8.0.121-1.el9_6.aarch64.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet-targeting-pack-8.0-0:8.0.21-1.el9_6.aarch64.rpm aspnetcore-runtime-8.0-0:8.0.21-1.el9_6.aarch64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el9_6.aarch64.rpm

Rocky Linux 9 s390x - AppStream

dotnet-targeting-pack-8.0-0:8.0.21-1.el9_6.s390x.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el9_6.s390x.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el9_6.s390x.rpm dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el9_6.s390x.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el9_6.s390x.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el9_6.s390x.rpm dotnet-runtime-8.0-0:8.0.21-1.el9_6.s390x.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el9_6.s390x.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el9_6.s390x.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el9_6.s390x.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm dotnet-sdk-8.0-0:8.0.121-1.el9_6.s390x.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el9_6.s390x.rpm aspnetcore-runtime-8.0-0:8.0.21-1.el9_6.s390x.rpm dotnet-templates-8.0-0:8.0.121-1.el9_6.s390x.rpm dotnet-apphost-pack-8.0-0:8.0.21-1.el9_6.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

aspnetcore-runtime-8.0-0:8.0.21-1.el9_6.x86_64.rpm aspnetcore-targeting-pack-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet-templates-8.0-0:8.0.121-1.el9_6.x86_64.rpm dotnet-hostfxr-8.0-0:8.0.21-1.el9_6.x86_64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet-apphost-pack-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet-targeting-pack-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm dotnet-sdk-8.0-0:8.0.121-1.el9_6.x86_64.rpm dotnet-runtime-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet-runtime-8.0-debuginfo-0:8.0.21-1.el9_6.x86_64.rpm dotnet-runtime-dbg-8.0-0:8.0.21-1.el9_6.x86_64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.21-1.el9_6.x86_64.rpm dotnet-sdk-dbg-8.0-0:8.0.121-1.el9_6.x86_64.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.21-1.el9_6.x86_64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.121-1.el9_6.x86_64.rpm

Rocky Linux 9 aarch64 - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el9_6.aarch64.rpm dotnet8.0-0:8.0.121-1.el9_6.src.rpm

Rocky Linux 9 ppc64le - CRB

dotnet8.0-0:8.0.121-1.el9_6.src.rpm dotnet-sdk-8.0-source-built-artifacts-0:8.0.121-1.el9_6.ppc64le.rpm