{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos-stream8els/vex/2025/cve-2025-61771-els_os-centos-stream8els.json" } ], "tracking": { "current_release_date": "2026-09-24T09:57:28Z", "generator": { "date": "2026-09-24T09:57:28Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2025-61771-ELS_OS-CENTOS-STREAM8ELS", "initial_release_date": "2025-10-07T15:16:00Z", "revision_history": [ { "date": "2025-10-07T15:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-09-24T09:57:28Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2025-61771" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 8", "product": { "name": "Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:8:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" }, { "branches": [ { "category": "product_version", "name": "pcs-0:0.10.18-2.el8.x86_64", "product": { "name": "pcs-0:0.10.18-2.el8.x86_64", "product_id": "pcs-0:0.10.18-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/pcs@0.10.18-2.el8?arch=x86_64" } } }, { "category": "product_version", "name": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product": { "name": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product_id": "pcs-snmp-0:0.10.18-2.el8.x86_64", "product_identification_helper": { "purl": "pkg:rpm/centos/pcs-snmp@0.10.18-2.el8?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_id": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/pcs-snmp@0.10.18-2.el8.tuxcare.els1?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" }, "product_reference": "pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-0:0.10.18-2.el8.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64" }, "product_reference": "pcs-0:0.10.18-2.el8.x86_64", "relates_to_product_reference": "CentOS-Stream-8" }, { "category": "default_component_of", "full_product_name": { "name": "pcs-snmp-0:0.10.18-2.el8.x86_64 as a component of Community Enterprise Operating System 8", "product_id": "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" }, "product_reference": "pcs-snmp-0:0.10.18-2.el8.x86_64", "relates_to_product_reference": "CentOS-Stream-8" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-61771", "cwe": { "id": "CWE-400", "name": "Uncontrolled Resource Consumption" }, "notes": [ { "category": "description", "text": "Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, ``Rack::Multipart::Parser` stores non-file form fields (parts without a `filename`) entirely in memory as Ruby `String` objects. A single large text field in a multipart/form-data request (hundreds of megabytes or more) can consume equivalent process memory, potentially leading to out-of-memory (OOM) conditions and denial of service (DoS). Attackers can send large non-file fields to trigger excessive memory usage. Impact scales with request size and concurrency, potentially leading to worker crashes or severe garbage-collection overhead. All Rack applications processing multipart form submissions are affected. Versions 2.2.19, 3.1.17, and 3.2.2 enforce a reasonable size cap for non-file fields (e.g., 2 MiB). Workarounds include restricting maximum request body size at the web-server or proxy layer (e.g., Nginx `client_max_body_size`) and validating and rejecting unusually large form fields at the application level.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" ], "known_affected": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-61771" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e", "url": "https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e", "url": "https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e" }, { "category": "external", "summary": "https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd", "url": "https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd" }, { "category": "external", "summary": "https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw", "url": "https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw" } ], "release_date": "2025-10-07T15:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-24T09:55:53.256165Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1790243751", "product_ids": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.tuxcare.els1.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1790243751" }, { "category": "none_available", "date": "2025-10-07T15:16:00Z", "details": "Affected", "product_ids": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CentOS-Stream-8:pcs-0:0.10.18-2.el8.x86_64", "CentOS-Stream-8:pcs-snmp-0:0.10.18-2.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }