fkie_cve-2022-45873
Vulnerability from fkie_nvd
Published
2022-11-23 23:15
Modified
2024-11-21 07:29
Severity ?
Summary
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.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
systemd_project | systemd | * | |
systemd_project | systemd | 252 | |
systemd_project | systemd | 252 | |
fedoraproject | fedora | 36 |
{ configurations: [ { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*", matchCriteriaId: "8AE4E7F2-A943-44CA-B44F-BDE0F8D09B53", versionEndIncluding: "251", versionStartIncluding: "250", vulnerable: true, }, { criteria: "cpe:2.3:a:systemd_project:systemd:252:rc1:*:*:*:*:*:*", matchCriteriaId: "55FF285C-8DFC-4A67-A426-1ADE349BEF8E", vulnerable: true, }, { criteria: "cpe:2.3:a:systemd_project:systemd:252:rc2:*:*:*:*:*:*", matchCriteriaId: "0E0E4355-1411-43F3-8DCE-700BE15FC71C", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", matchCriteriaId: "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD", vulnerable: true, }, ], negate: false, operator: "OR", }, ], }, ], cveTags: [], descriptions: [ { lang: "en", value: "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.", }, { lang: "es", value: "systemd 250 y 251 permiten a los usuarios locales lograr un punto muerto en systemd-coredump al desencadenar un bloqueo que tiene un largo backtrace. Esto ocurre en parse_elf_object enshared/elf-util.c. La metodología de explotación consiste en bloquear un binario que llama a la misma función de forma recursiva y colocarlo en un directorio profundamente anidado para que su seguimiento sea lo suficientemente grande como para provocar el punto muerto. Esto se debe hacer 16 veces cuando se establece MaxConnections=16 para el archivo systemd/units/systemd-coredump.socket.", }, ], id: "CVE-2022-45873", lastModified: "2024-11-21T07:29:52.680", metrics: { cvssMetricV31: [ { cvssData: { 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", }, exploitabilityScore: 1.8, impactScore: 3.6, source: "nvd@nist.gov", type: "Primary", }, ], }, published: "2022-11-23T23:15:10.183", references: [ { source: "cve@mitre.org", tags: [ "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437", }, { source: "cve@mitre.org", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497", }, { source: "cve@mitre.org", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553", }, { source: "cve@mitre.org", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Issue Tracking", "Patch", "Third Party Advisory", ], url: "https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/", }, ], sourceIdentifier: "cve@mitre.org", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-400", }, ], source: "nvd@nist.gov", type: "Primary", }, ], }
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Sightings
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Nomenclature
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