{"id":"ALSA-2025:18152","summary":"Important: .NET 8.0 security update","details":".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.  \n\nNew 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):  \n\n  * dotnet: .NET Information Disclosure Vulnerability (CVE-2025-55248)\n  * dotnet: .NET Security Feature Bypass Vulnerability (CVE-2025-55315)\n  * dotnet: .NET Denial of Service Vulnerability (CVE-2025-55247)\n\n\nFor 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.\n","modified":"2026-01-30T01:44:55.558623Z","published":"2025-10-15T00:00:00Z","related":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2025:18152"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-55247"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-55248"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-55315"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2403083"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2403085"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2403086"},{"type":"ADVISORY","url":"https://errata.almalinux.org/10/ALSA-2025-18152.html"}],"affected":[{"package":{"name":"aspnetcore-runtime-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/aspnetcore-runtime-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"aspnetcore-runtime-dbg-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/aspnetcore-runtime-dbg-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"aspnetcore-targeting-pack-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/aspnetcore-targeting-pack-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-apphost-pack-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-apphost-pack-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-hostfxr-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-hostfxr-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-runtime-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-runtime-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-runtime-dbg-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-runtime-dbg-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-sdk-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-sdk-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.121-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-sdk-8.0-source-built-artifacts","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-sdk-8.0-source-built-artifacts"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.121-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-sdk-dbg-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-sdk-dbg-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.121-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-targeting-pack-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-targeting-pack-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.21-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}},{"package":{"name":"dotnet-templates-8.0","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/dotnet-templates-8.0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.121-1.el10_0"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2025:18152.json"}}],"schema_version":"1.7.3"}