{ "document": { "aggregate_severity": { "text": "Medium" }, "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/2023/cve-2023-0465-els_os-ubuntu20_04els.json" } ], "tracking": { "current_release_date": "2026-04-20T12:25:25Z", "generator": { "date": "2026-04-20T12:25:25Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2023-0465-ELS_OS-UBUNTU20.04ELS", "initial_release_date": "2023-03-28T15:15:00Z", "revision_history": [ { "date": "2023-03-28T15:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-20T12:25:25Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on CVE-2023-0465" }, "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": "architecture", "name": "amd64" } ], "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" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-0465", "cwe": { "id": "CWE-295", "name": "Improper Certificate Validation" }, "notes": [ { "category": "description", "text": "Applications that use a non-default option when verifying certificates may be\nvulnerable to an attack from a malicious CA to circumvent certain checks.\n\nInvalid certificate policies in leaf certificates are silently ignored by\nOpenSSL and other certificate policy checks are skipped for that certificate.\nA malicious CA could use this to deliberately assert invalid certificate policies\nin order to circumvent policy checking on the certificate altogether.\n\nPolicy processing is disabled by default but can be enabled by passing\nthe `-policy' argument to the command line utilities or by calling the\n`X509_VERIFY_PARAM_set1_policies()' function.", "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": { "under_investigation": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2023-0465" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=10325176f3d3e98c6e2b3bf5ab1e3b334de6947a", "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=10325176f3d3e98c6e2b3bf5ab1e3b334de6947a" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1dd43e0709fece299b15208f36cc7c76209ba0bb", "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1dd43e0709fece299b15208f36cc7c76209ba0bb" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b013765abfa80036dc779dd0e50602c57bb3bf95", "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b013765abfa80036dc779dd0e50602c57bb3bf95" }, { "category": "external", "summary": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=facfb1ab745646e97a1920977ae4a9965ea61d5c", "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=facfb1ab745646e97a1920977ae4a9965ea61d5c" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html", "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202402-08", "url": "https://security.gentoo.org/glsa/202402-08" }, { "category": "external", "summary": "https://security.netapp.com/advisory/ntap-20230414-0001/", "url": "https://security.netapp.com/advisory/ntap-20230414-0001/" }, { "category": "external", "summary": "https://www.debian.org/security/2023/dsa-5417", "url": "https://www.debian.org/security/2023/dsa-5417" }, { "category": "external", "summary": "https://www.openssl.org/news/secadv/20230328.txt", "url": "https://www.openssl.org/news/secadv/20230328.txt" } ], "release_date": "2023-03-28T15:15:00Z", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1" }, "products": [ "Ubuntu-20:libssl-dev-0:1.1.1f-1ubuntu2.24+tuxcare.els2.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] } ] }