{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2025-8671","title":"Title"},{"category":"description","text":"A mismatch caused by client-triggered server-sent stream resets between HTTP/2 specifications and the internal architectures of some HTTP/2 implementations may result in excessive server resource consumption leading to denial-of-service (DoS).  By opening streams and then rapidly triggering the server to reset them-using malformed frames or flow control errors-an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2025-8671","url":"https://www.suse.com/security/cve/CVE-2025-8671"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1243888 for CVE-2025-8671","url":"https://bugzilla.suse.com/1243888"},{"category":"external","summary":"SUSE Bug 1243895 for CVE-2025-8671","url":"https://bugzilla.suse.com/1243895"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0888-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024689.html"},{"category":"external","summary":"Advisory link for TID000021980","url":"https://www.suse.com/support/kb/doc/?id=000021980"}],"title":"SUSE CVE CVE-2025-8671","tracking":{"current_release_date":"2026-03-14T00:28:50Z","generator":{"date":"2025-08-25T23:34:01Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2025-8671","initial_release_date":"2025-08-25T23:34:01Z","revision_history":[{"date":"2025-08-25T23:34:01Z","number":"2","summary":"Current version"},{"date":"2025-08-27T23:29:56Z","number":"3","summary":"Current version"},{"date":"2025-12-17T00:48:16Z","number":"4","summary":"description changed"},{"date":"2025-12-19T00:47:53Z","number":"5","summary":"description changed"},{"date":"2026-02-23T00:27:02Z","number":"6","summary":"more updates released"},{"date":"2026-03-11T17:33:02Z","number":"7","summary":"updates entered QA"},{"date":"2026-03-13T14:24:24Z","number":"8","summary":"more updates released"},{"date":"2026-03-14T00:28:50Z","number":"9","summary":"references added"}],"status":"interim","version":"9"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Desktop 15 SP7","product":{"name":"SUSE Linux Enterprise Desktop 15 SP7","product_id":"SUSE Linux Enterprise Desktop 15 SP7","product_identification_helper":{"cpe":"cpe:/o:suse:sled:15:sp7"}}},{"category":"product_name","name":"SUSE Linux Enterprise High Availability Extension 12 SP5","product":{"name":"SUSE Linux Enterprise High Availability Extension 12 SP5","product_id":"SUSE Linux Enterprise High Availability Extension 12 SP5","product_identification_helper":{"cpe":"cpe:/o:suse:sle-ha:12:sp5"}}},{"category":"product_name","name":"SUSE Linux Enterprise High Performance Computing 15 SP7","product":{"name":"SUSE Linux Enterprise High Performance Computing 15 SP7","product_id":"SUSE 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By opening streams and then rapidly triggering the server to reset them-using malformed frames or flow control errors-an attacker can exploit incorrect stream accounting. Streams reset by the server are considered closed at the protocol level, even though backend processing continues. This allows a client to cause the server to handle an unbounded number of concurrent streams on a single connection. This CVE will be updated as affected product details are released.","title":"CVE description"}],"product_status":{"known_not_affected":["SUSE Linux Enterprise High Availability Extension 12 SP5:lighttpd","SUSE Linux Enterprise Server for SAP Applications 12 SP5:lighttpd"],"recommended":["SUSE Linux Enterprise Desktop 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise High Performance Computing 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Module for Basesystem 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Server 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Server for SAP Applications 15 SP7:dnsdist-1.9.11-150700.3.6.1","openSUSE Tumbleweed:dnsdist-2.0.2-1.1","openSUSE Tumbleweed:lighttpd-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_dbi-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_gssapi-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_ldap-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_pam-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_sasl-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_deflate-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_gnutls-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_magnet-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_maxminddb-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_mbedtls-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_nss-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_openssl-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_rrdtool-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_vhostdb_dbi-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_vhostdb_ldap-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_vhostdb_mysql-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_vhostdb_pgsql-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_webdav-1.4.80-1.1"]},"references":[{"category":"external","summary":"CVE-2025-8671","url":"https://www.suse.com/security/cve/CVE-2025-8671"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1243888 for CVE-2025-8671","url":"https://bugzilla.suse.com/1243888"},{"category":"external","summary":"SUSE Bug 1243895 for CVE-2025-8671","url":"https://bugzilla.suse.com/1243895"},{"category":"external","summary":"Advisory link for SUSE-SU-2026:0888-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2026-March/024689.html"},{"category":"external","summary":"Advisory link for TID000021980","url":"https://www.suse.com/support/kb/doc/?id=000021980"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Desktop 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise High Performance Computing 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Module for Basesystem 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Server 15 SP7:dnsdist-1.9.11-150700.3.6.1","SUSE Linux Enterprise Server for SAP Applications 15 SP7:dnsdist-1.9.11-150700.3.6.1","openSUSE Tumbleweed:dnsdist-2.0.2-1.1","openSUSE Tumbleweed:lighttpd-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_dbi-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_gssapi-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_ldap-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_pam-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_authn_sasl-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_deflate-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_gnutls-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_magnet-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_maxminddb-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_mbedtls-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_nss-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_openssl-1.4.80-1.1","openSUSE Tumbleweed:lighttpd-mod_rrdtool-1.4.80-1.1","openSUSE 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Tumbleweed:lighttpd-mod_webdav-1.4.80-1.1"]}],"threats":[{"category":"impact","date":"2025-08-06T13:15:15Z","details":"important"}],"title":"CVE-2025-8671"}]}