FKIE_CVE-2018-20781

Vulnerability from fkie_nvd - Published: 2019-02-12 17:29 - Updated: 2026-06-17 01:53
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
References
cve@mitre.orghttps://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://bugzilla.gnome.org/show_bug.cgi?id=781486Issue Tracking, Patch, Vendor Advisory
cve@mitre.orghttps://github.com/huntergregal/mimipenguinThird Party Advisory
cve@mitre.orghttps://github.com/huntergregal/mimipenguin/tree/d95f1e08ce79783794f38433bbf7de5abd9792daThird Party Advisory
cve@mitre.orghttps://gitlab.gnome.org/GNOME/gnome-keyring/issues/3Vendor Advisory
cve@mitre.orghttps://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2Release Notes, Vendor Advisory
cve@mitre.orghttps://usn.ubuntu.com/3894-1/Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.gnome.org/show_bug.cgi?id=781486Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/huntergregal/mimipenguinThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/huntergregal/mimipenguin/tree/d95f1e08ce79783794f38433bbf7de5abd9792daThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.gnome.org/GNOME/gnome-keyring/issues/3Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3894-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
Impacted products
Vendor Product Version
gnome gnome_keyring *
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
oracle zfs_storage_appliance_kit 8.8
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "0CFACFEA-0EA3-41A7-809D-9BE2E0FB8371",
              "versionEndExcluding": "3.27.2",
              "vulnerable": true
            }
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          "operator": "OR"
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    {
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              "vulnerable": true
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user\u0027s password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext."
    },
    {
      "lang": "es",
      "value": "En pam/gkr-pam-module.c en GNOME Keyring, en versiones anteriores a la 3.27.2, la contrase\u00f1a del usuario se mantiene en un proceso hijo de sesi\u00f3n que se genera en el demonio LightDM. Esto puede exponer las credenciales en texto claro."
    }
  ],
  "id": "CVE-2018-20781",
  "lastModified": "2026-06-17T01:53:27.640",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
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        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
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  "published": "2019-02-12T17:29:00.243",
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      "source": "cve@mitre.org",
      "tags": [
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

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