fkie_cve-2022-45873
Vulnerability from fkie_nvd
Published
2022-11-23 23:15
Modified
2025-04-25 19:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
cve@mitre.orghttps://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437Patch, Third Party Advisory
cve@mitre.orghttps://github.com/systemd/systemd/pull/24853#issuecomment-1326561497Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://github.com/systemd/systemd/pull/25055#issuecomment-1313733553Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/pull/24853#issuecomment-1326561497Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/pull/25055#issuecomment-1313733553Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MS5N5SLYAHKENLAJWYBDKU55ICU3SVZF/
Impacted products
Vendor Product Version
systemd_project systemd *
systemd_project systemd 252
systemd_project systemd 252
fedoraproject fedora 36


To clipboard 

{
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "versionEndIncluding": "251",
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            },
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  "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 metodolog\u00eda de explotaci\u00f3n consiste en bloquear un binario que llama a la misma funci\u00f3n 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": "2025-04-25T19:15:48.487",
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          "confidentialityImpact": "NONE",
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  "sourceIdentifier": "cve@mitre.org",
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}


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