{ "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/ubuntu20.04els/vex/2025/cve-2025-15467-els_os-ubuntu20_04els.json" } ], "tracking": { "current_release_date": "2026-02-17T12:07:02Z", "generator": { "date": "2026-02-17T12:07:02Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2025-15467-ELS_OS-UBUNTU20.04ELS", "initial_release_date": "2025-01-01T00:00:00Z", "revision_history": [ { "date": "2025-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-02-17T12:07:02Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2025-15467" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Ubuntu 20.04", "product": { "name": "Ubuntu 20.04", "product_id": "Ubuntu-20", "product_identification_helper": { "cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*" } } } ], "category": "product_family", "name": "Ubuntu" } ], "category": "vendor", "name": "Canonical Ltd." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product": { "name": "libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_id": "libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libssl-dev@1.1.1f-1ubuntu2.24%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product": { "name": "openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_id": "openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/openssl@1.1.1f-1ubuntu2.24%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product": { "name": "libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_id": "libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libssl1.1@1.1.1f-1ubuntu2.24%2Btuxcare.els2?arch=amd64" } } } ], "category": "architecture", "name": "amd64" }, { "branches": [ { "category": "product_version", "name": "libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "product": { "name": "libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "product_id": "libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/libssl-doc@1.1.1f-1ubuntu2.24%2Btuxcare.els2?arch=all" } } } ], "category": "architecture", "name": "all" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" }, "product_reference": "libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" }, "product_reference": "openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all" }, "product_reference": "libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" }, "product_reference": "libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "relates_to_product_reference": "Ubuntu-20" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-15467", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "notes": [ { "category": "description", "text": "Issue summary: Parsing CMS AuthEnvelopedData message with maliciously\ncrafted AEAD parameters can trigger a stack buffer overflow.\nImpact summary: A stack buffer overflow may lead to a crash, causing Denial\nof Service, or potentially remote code execution.\nWhen parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as\nAES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is\ncopied into a fixed-size stack buffer without verifying that its length fits\nthe destination. An attacker can supply a crafted CMS message with an\noversized IV, causing a stack-based out-of-bounds write before any\nauthentication or tag verification occurs.\nApplications and services that parse untrusted CMS or PKCS#7 content using\nAEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable.\nBecause the overflow occurs prior to authentication, no valid key material\nis required to trigger it. While exploitability to remote code execution\ndepends on platform and toolchain mitigations, the stack-based write\nprimitive represents a severe risk.\nThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this\nissue, as the CMS implementation is outside the OpenSSL FIPS module\nboundary.\nOpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue.\nOpenSSL 1.1.1 and 1.0.2 are not affected by this issue.", "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": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "Ubuntu-20:libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-15467" } ], "release_date": "2026-01-27T14:00:00Z", "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": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "Ubuntu-20:libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" }, { "category": "impact", "details": "important", "product_ids": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:libssl-doc-0:1.1.1f-1ubuntu2.24+tuxcare.els2.all", "Ubuntu-20:libssl1.1-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64", "Ubuntu-20:openssl-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] } ] } ] }