{"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-2025-27421","title":"Title"},{"category":"description","text":"Abacus is a highly scalable and stateless counting API. A critical goroutine leak vulnerability has been identified in the Abacus server's Server-Sent Events (SSE) implementation. The issue occurs when clients disconnect from the /stream endpoint, as the server fails to properly clean up resources and terminate associated goroutines. This leads to resource exhaustion where the server continues running but eventually stops accepting new SSE connections while maintaining high memory usage. The vulnerability specifically involves improper channel cleanup in the event handling mechanism, causing goroutines to remain blocked indefinitely. This vulnerability is fixed in 1.4.0.","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-2025-27421","url":"https://www.suse.com/security/cve/CVE-2025-27421"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"}],"title":"SUSE CVE CVE-2025-27421","tracking":{"current_release_date":"2026-01-16T00:37:07Z","generator":{"date":"2025-03-14T02:56:55Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2025-27421","initial_release_date":"2025-03-14T02:56:55Z","revision_history":[{"date":"2025-03-14T02:56:55Z","number":"2","summary":"Current version"},{"date":"2025-03-15T03:51:39Z","number":"3","summary":"Current version"},{"date":"2025-04-24T09:47:40Z","number":"4","summary":"Current version"},{"date":"2025-11-03T00:33:09Z","number":"5","summary":"Current version"},{"date":"2026-01-16T00:37:07Z","number":"6","summary":"unknown changes"}],"status":"interim","version":"6"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Server 16.0","product":{"name":"SUSE Linux Enterprise Server 16.0","product_id":"SUSE Linux Enterprise Server 16.0","product_identification_helper":{"cpe":"cpe:/o:suse:sles:16:16.0:server"}}},{"category":"product_name","name":"openSUSE Tumbleweed","product":{"name":"openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed","product_identification_helper":{"cpe":"cpe:/o:opensuse:tumbleweed"}}},{"category":"product_version","name":"govulncheck-vulndb-0.0.20250312T181707-1.1","product":{"name":"govulncheck-vulndb-0.0.20250312T181707-1.1","product_id":"govulncheck-vulndb-0.0.20250312T181707-1.1","product_identification_helper":{"purl":"pkg:rpm/suse/govulncheck-vulndb@0.0.20250312T181707-1.1?upstream=govulncheck-vulndb-0.0.20250312T181707-1.1.src.rpm"}}},{"category":"product_version","name":"govulncheck-vulndb-0.0.20250814T182633-160000.1.2","product":{"name":"govulncheck-vulndb-0.0.20250814T182633-160000.1.2","product_id":"govulncheck-vulndb-0.0.20250814T182633-160000.1.2","product_identification_helper":{"purl":"pkg:rpm/suse/govulncheck-vulndb@0.0.20250814T182633-160000.1.2?upstream=govulncheck-vulndb-0.0.20250814T182633-160000.1.2.src.rpm"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"govulncheck-vulndb-0.0.20250814T182633-160000.1.2 as component of SUSE Linux Enterprise Server 16.0","product_id":"SUSE Linux Enterprise Server 16.0:govulncheck-vulndb-0.0.20250814T182633-160000.1.2"},"product_reference":"govulncheck-vulndb-0.0.20250814T182633-160000.1.2","relates_to_product_reference":"SUSE Linux Enterprise Server 16.0"},{"category":"default_component_of","full_product_name":{"name":"govulncheck-vulndb-0.0.20250312T181707-1.1 as component of openSUSE Tumbleweed","product_id":"openSUSE Tumbleweed:govulncheck-vulndb-0.0.20250312T181707-1.1"},"product_reference":"govulncheck-vulndb-0.0.20250312T181707-1.1","relates_to_product_reference":"openSUSE Tumbleweed"}]},"vulnerabilities":[{"cve":"CVE-2025-27421","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2025-27421"}],"notes":[{"category":"general","text":"Abacus is a highly scalable and stateless counting API. A critical goroutine leak vulnerability has been identified in the Abacus server's Server-Sent Events (SSE) implementation. The issue occurs when clients disconnect from the /stream endpoint, as the server fails to properly clean up resources and terminate associated goroutines. This leads to resource exhaustion where the server continues running but eventually stops accepting new SSE connections while maintaining high memory usage. The vulnerability specifically involves improper channel cleanup in the event handling mechanism, causing goroutines to remain blocked indefinitely. This vulnerability is fixed in 1.4.0.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Server 16.0:govulncheck-vulndb-0.0.20250814T182633-160000.1.2","openSUSE Tumbleweed:govulncheck-vulndb-0.0.20250312T181707-1.1"]},"references":[{"category":"external","summary":"CVE-2025-27421","url":"https://www.suse.com/security/cve/CVE-2025-27421"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"}],"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 Server 16.0:govulncheck-vulndb-0.0.20250814T182633-160000.1.2","openSUSE Tumbleweed:govulncheck-vulndb-0.0.20250312T181707-1.1"]}],"threats":[{"category":"impact","date":"2025-03-03T19:00:23Z","details":"important"}],"title":"CVE-2025-27421"}]}