FKIE_CVE-2021-4115

Vulnerability from fkie_nvd - Published: 2022-02-21 22:15 - Updated: 2026-06-17 04:19
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned
References
secalert@redhat.comhttp://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html
secalert@redhat.comhttps://access.redhat.com/security/cve/cve-2021-4115Third Party Advisory
secalert@redhat.comhttps://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531ePatch, Third Party Advisory
secalert@redhat.comhttps://gitlab.freedesktop.org/polkit/polkit/-/issues/141Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/
secalert@redhat.comhttps://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/172849/polkit-File-Descriptor-Exhaustion.html
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/cve-2021-4115Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/redhat/centos-stream/rpms/polkit/-/merge_requests/6/diffs?commit_id=bf900df04dc390d389e59aa10942b0f2b15c531ePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.freedesktop.org/polkit/polkit/-/issues/141Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGKWCBS6IDZYYDYM2WIWJM5BL7QQTWPF/
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
polkit_project polkit 0.117
redhat enterprise_linux 8.0
fedoraproject fedora 34
fedoraproject fedora 35
canonical ubuntu_linux 20.04
canonical ubuntu_linux 21.10
debian debian_linux 11.0
oracle zfs_storage_appliance_kit 8.8
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "polkitd",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "0.117"
            }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned"
    },
    {
      "lang": "es",
      "value": "Se presenta un fallo en polkit que puede permitir a un usuario no privilegiado causar un bloqueo de polkit, debido al agotamiento del descriptor de archivos del proceso. La mayor amenaza de esta vulnerabilidad es la disponibilidad. NOTA: La duraci\u00f3n de la interrupci\u00f3n del proceso de polkit est\u00e1 ligada al proceso que falla y a la creaci\u00f3n de uno nuevo"
    }
  ],
  "id": "CVE-2021-4115",
  "lastModified": "2026-06-17T04:19:03.493",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
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          "availabilityImpact": "HIGH",
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          "baseSeverity": "MEDIUM",
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          "scope": "UNCHANGED",
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  "published": "2022-02-21T22:15:07.743",
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}



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