usn-4616-1
Vulnerability from osv_ubuntu
Published
2020-11-03 15:16
Modified
2026-04-22 07:36
Summary
accountsservice vulnerabilities
Details

Kevin Backhouse discovered that AccountsService incorrectly dropped privileges. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. (CVE-2020-16126)

Kevin Backhouse discovered that AccountsService incorrectly handled reading .pam_environment files. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-16127)

Matthias Gerstner discovered that AccountsService incorrectly handled certain path checks. A local attacker could possibly use this issue to read arbitrary files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-14036)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-14036",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16126",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "accountsservice",
            "binary_version": "0.6.40-2ubuntu11.6"
          },
          {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.40-2ubuntu11.6"
          },
          {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.40-2ubuntu11.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "accountsservice",
        "purl": "pkg:deb/ubuntu/accountsservice@0.6.40-2ubuntu11.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.40-2ubuntu11.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.40-2ubuntu5",
        "0.6.40-2ubuntu6",
        "0.6.40-2ubuntu7",
        "0.6.40-2ubuntu8",
        "0.6.40-2ubuntu9",
        "0.6.40-2ubuntu10",
        "0.6.40-2ubuntu11",
        "0.6.40-2ubuntu11.1",
        "0.6.40-2ubuntu11.2",
        "0.6.40-2ubuntu11.3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-14036",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16126",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "accountsservice",
            "binary_version": "0.6.45-1ubuntu1.3"
          },
          {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.45-1ubuntu1.3"
          },
          {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.45-1ubuntu1.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "accountsservice",
        "purl": "pkg:deb/ubuntu/accountsservice@0.6.45-1ubuntu1.3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.45-1ubuntu1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.42-0ubuntu3",
        "0.6.42-0ubuntu4",
        "0.6.45-1ubuntu1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-16126",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16127",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
          },
          {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
          },
          {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "accountsservice",
        "purl": "pkg:deb/ubuntu/accountsservice@0.6.55-0ubuntu12~20.04.4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.55-0ubuntu12~20.04.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.55-0ubuntu10",
        "0.6.55-0ubuntu11",
        "0.6.55-0ubuntu12~20.04.1",
        "0.6.55-0ubuntu12~20.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "Kevin Backhouse discovered that AccountsService incorrectly dropped\nprivileges. A local user could possibly use this issue to cause\nAccountsService to crash or hang, resulting in a denial of service.\n(CVE-2020-16126)\n\nKevin Backhouse discovered that AccountsService incorrectly handled reading\n.pam_environment files. A local user could possibly use this issue to cause\nAccountsService to crash or hang, resulting in a denial of service. This\nissue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-16127)\n\nMatthias Gerstner discovered that AccountsService incorrectly handled\ncertain path checks. A local attacker could possibly use this issue to\nread arbitrary files. This issue only affected Ubuntu 16.04 LTS and Ubuntu\n18.04 LTS. (CVE-2018-14036)\n",
  "id": "USN-4616-1",
  "modified": "2026-04-22T07:36:58Z",
  "published": "2020-11-03T15:16:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4616-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-14036"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-16126"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-16127"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "accountsservice vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-14036",
    "UBUNTU-CVE-2020-16126",
    "UBUNTU-CVE-2020-16127"
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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