{ "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/ubuntu16.04els/vex/2022/cve-2022-45873-els_os-ubuntu16_04els.json" } ], "title": "Security update on CVE-2022-45873", "tracking": { "current_release_date": "2025-12-23T22:15:38Z", "generator": { "date": "2025-12-23T22:15:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2022-45873-ELS_OS-UBUNTU16.04ELS", "initial_release_date": "2022-11-23T23:15:00Z", "revision_history": [ { "date": "2022-11-23T23:15:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-11-29T18:16:00Z", "number": "2", "summary": "Official Publication" }, { "date": 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"relates_to_product_reference": "Ubuntu-16" }, { "category": "default_component_of", "full_product_name": { "name": "systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64 as a component of Ubuntu 16.04", "product_id": "Ubuntu-16:systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64" }, "product_reference": "systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64", "relates_to_product_reference": "Ubuntu-16" } ] }, "vulnerabilities": [ { "cve": "CVE-2022-45873", "cwe": { "id": "CWE-400", "name": "Uncontrolled Resource Consumption" }, "notes": [ { "category": "description", "text": "systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.", "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-16:libnss-myhostname-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-mymachines-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.32.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33.amd64", "Ubuntu-16:libpam-systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd0-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev1-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-container-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-coredump-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-journal-remote-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:udev-0:229-4ubuntu21.33+tuxcare.els1.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2022-45873" }, { "category": "external", "summary": "https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437", "url": "https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437" }, { "category": "external", "summary": "https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497", "url": "https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497" }, { "category": "external", "summary": "https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553", "url": "https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553" }, { "category": "external", "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/" } ], "release_date": "2022-11-23T23:15:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "Ubuntu-16:libnss-myhostname-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-mymachines-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.32.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33.amd64", "Ubuntu-16:libpam-systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd0-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev1-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-container-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-coredump-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-journal-remote-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:udev-0:229-4ubuntu21.33+tuxcare.els1.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "details": "moderate", "product_ids": [ "Ubuntu-16:libnss-myhostname-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-mymachines-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.32.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libnss-resolve-0:229-4ubuntu21.33.amd64", "Ubuntu-16:libpam-systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libsystemd0-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev-dev-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:libudev1-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-container-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-coredump-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-journal-remote-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:systemd-sysv-0:229-4ubuntu21.33+tuxcare.els1.amd64", "Ubuntu-16:udev-0:229-4ubuntu21.33+tuxcare.els1.amd64" ] } ] } ] }