{ "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/2022/cve-2022-23218-els_os-ubuntu20_04els.json" } ], "tracking": { "current_release_date": "2026-04-13T08:42:55Z", "generator": { "date": "2026-04-13T08:42:55Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2022-23218-ELS_OS-UBUNTU20.04ELS", "initial_release_date": "2022-01-14T07:15:00Z", "revision_history": [ { "date": "2022-01-14T07:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-04-13T08:42:55Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security 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component of Ubuntu 20.04", "product_id": "Ubuntu-20:libc6-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" }, "product_reference": "libc6-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" }, "product_reference": "libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all" }, "product_reference": "glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all", "relates_to_product_reference": "Ubuntu-20" }, { "category": "default_component_of", "full_product_name": { "name": "libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64 as a component of Ubuntu 20.04", "product_id": "Ubuntu-20:libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" }, "product_reference": "libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-20" } ] }, "vulnerabilities": [ { "cve": "CVE-2022-23218", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')" }, "notes": [ { "category": "description", "text": "The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its path argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.", "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:glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:glibc-source-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:libc-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-pic-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-prof-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:locales-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:locales-all-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:nscd-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2022-23218" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html", "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html" }, { "category": "external", "summary": "https://security.gentoo.org/glsa/202208-24", "url": "https://security.gentoo.org/glsa/202208-24" }, { "category": "external", "summary": "https://sourceware.org/bugzilla/show_bug.cgi?id=28768", "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=28768" }, { "category": "external", "summary": "https://www.oracle.com/security-alerts/cpujul2022.html", "url": "https://www.oracle.com/security-alerts/cpujul2022.html" } ], "release_date": "2022-01-14T07:15:00Z", "remediations": [ { "category": "none_available", "details": "Affected", "product_ids": [ "Ubuntu-20:glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:glibc-source-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:libc-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-pic-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-prof-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:locales-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:locales-all-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:nscd-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" ] } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0" }, "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:glibc-doc-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:glibc-source-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:libc-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc-dev-bin-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-dev-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-i386-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-pic-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-prof-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:libc6-x32-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:locales-0:2.31-0ubuntu9.18+tuxcare.els1.all", "Ubuntu-20:locales-all-0:2.31-0ubuntu9.18+tuxcare.els1.amd64", "Ubuntu-20:nscd-0:2.31-0ubuntu9.18+tuxcare.els1.amd64" ] } ], "threats": [ { "category": "impact", "details": "Critical" } ] } ] }