{ "document": { "aggregate_severity": { "text": "Critical" }, "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/centos8.5els/vex/2025/cve-2025-67896-els_os-centos8_5els.json" } ], "tracking": { "current_release_date": "2026-06-12T19:15:42Z", "generator": { "date": "2026-06-12T19:15:42Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2025-67896-ELS_OS-CENTOS8.5ELS", "initial_release_date": "2025-12-14T04:15:00Z", "revision_history": [ { "date": "2025-12-14T04:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-01-05T10:46:28Z", "number": "2", "summary": "Official Publication" }, { "date": "2026-06-12T19:15:42Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "3" }, "title": "Security update on CVE-2025-67896" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 8.5", "product": { "name": "Community Enterprise Operating System 8.5", "product_id": "CentOS-8.5", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:8.5:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "exim-0:4.95-1.el8.tuxcare.els1.x86_64", "product": { "name": "exim-0:4.95-1.el8.tuxcare.els1.x86_64", "product_id": "exim-0:4.95-1.el8.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/exim@4.95-1.el8.tuxcare.els1?arch=x86_64" } } }, { "category": "product_version", "name": "exim-0:4.96.1-1.el8.tuxcare.els1.x86_64", 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"exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8.5", "product_id": "CentOS-8.5:exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64" }, "product_reference": "exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-8.5" }, { "category": "default_component_of", "full_product_name": { "name": "exim-0:4.99.2-1.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8.5", "product_id": "CentOS-8.5:exim-0:4.99.2-1.el8.tuxcare.els1.x86_64" }, "product_reference": "exim-0:4.99.2-1.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-8.5" }, { "category": "default_component_of", "full_product_name": { "name": "exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8.5", "product_id": "CentOS-8.5:exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64" }, "product_reference": "exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-8.5" }, { "category": "default_component_of", "full_product_name": { "name": "exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 8.5", "product_id": "CentOS-8.5:exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64" }, "product_reference": "exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64", "relates_to_product_reference": "CentOS-8.5" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-67896", "cwe": { "id": "CWE-122", "name": "Heap-based Buffer Overflow" }, "notes": [ { "category": "description", "text": "Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.", "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" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "CentOS-8.5:exim-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.99.2-1.el8.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-67896" }, { "category": "external", "summary": "https://exim.org/static/doc/security/", "url": "https://exim.org/static/doc/security/" }, { "category": "external", "summary": "https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt", "url": "https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt" }, { "category": "external", "summary": "https://www.openwall.com/lists/oss-security/2025/12/11/2", "url": "https://www.openwall.com/lists/oss-security/2025/12/11/2" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2025/12/14/1", "url": "http://www.openwall.com/lists/oss-security/2025/12/14/1" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2025/12/18/3", "url": "http://www.openwall.com/lists/oss-security/2025/12/18/3" } ], "release_date": "2025-12-14T04:15:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "CentOS-8.5:exim-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.99.2-1.el8.tuxcare.els1.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Critical" }, { "category": "impact", "date": "2026-06-12T13:05:02.281444Z", "details": "Not vulnerable: CVE-2025-67896 requires Exim to be built and configured with a SQLite-backed hints database in combination with specific non-default ratelimit ACL options (e.g., unique/per_addr). The installed build uses a Berkeley DB hints backend (exim -bV shows “Hints DB: Berkeley DB 5.3.28”), so the SQLite-specific vulnerable code path is not present or reachable. Red Hat likewise indicates that no supported Red Hat product is affected by this CVE.", "product_ids": [ "CentOS-8.5:exim-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-greylist-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mon-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-mysql-0:4.99.2-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.95-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.96.1-1.el8.tuxcare.els1.x86_64", "CentOS-8.5:exim-pgsql-0:4.99.2-1.el8.tuxcare.els1.x86_64" ] } ] } ] }