FKIE_CVE-2019-3843

Vulnerability from fkie_nvd - Published: 2019-04-26 21:29 - Updated: 2026-06-17 02:35
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future, when the UID/GID will be recycled.
References
secalert@redhat.comhttp://www.securityfocus.com/bid/108116Third Party Advisory, VDB Entry
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3843Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
secalert@redhat.comhttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5JXQAKSTMABZ46EVCRMW62DHWYHTTFES/
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20190619-0002/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/4269-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/108116Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3843Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5JXQAKSTMABZ46EVCRMW62DHWYHTTFES/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190619-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4269-1/Third Party Advisory
Impacted products
Vendor Product Version
systemd_project systemd *
fedoraproject fedora 30
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 19.10
netapp hci_management_node -
netapp snapprotect -
netapp solidfire -
netapp cn1610_firmware -
netapp cn1610 -
To clipboard 

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          "vendor": "[freedesktop.org]",
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    },
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      "lang": "es",
      "value": "Se descubri\u00f3 que un servicio systemd que utiliza la propiedad DynamicUser puede crear un binario SUID/SGID que podr\u00eda ejecutarse como servicio transitorio UID/GID incluso despu\u00e9s de que el servicio haya terminado. Un atacante local puede utilizar esta vulnerabilidad para acceder a recursos que ser\u00e1n propiedad de un servicio potencialmente diferente en el futuro, cuando el UID/GID sea reciclado."
    }
  ],
  "id": "CVE-2019-3843",
  "lastModified": "2026-06-17T02:35:42.523",
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  "published": "2019-04-26T21:29:00.360",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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