Security advisory

{
  "id": "53d44b32cd49794a1117a6a8cf57d1337492e838d463ab396000f26ff6745e97",
  "url": "https://osv.dev/vulnerability/CVE-2017-12164",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-12164",
    "summary": "A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.",
    "evidence": "osv:CVE-2017-12164",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-12164",
      "aliases": [
        "CVE-2017-12164"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gnome/gdm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fc04ebbe19f0944f7732e78fa55ccc59ea64e853"
                },
                {
                  "last_affected": "fc04ebbe19f0944f7732e78fa55ccc59ea64e853"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome_display_manager:3.24.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.24.1"
                      },
                      {
                        "last_affected": "3.24.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.24.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12164.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.gnome.org/gnome/gdm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fc04ebbe19f0944f7732e78fa55ccc59ea64e853"
                },
                {
                  "last_affected": "fc04ebbe19f0944f7732e78fa55ccc59ea64e853"
                },
                {
                  "fixed": "ff98b28"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnome:gnome_display_manager:3.24.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.24.1"
                      },
                      {
                        "last_affected": "3.24.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ff98b28"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.24.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12164.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:28.424966635Z",
      "provider": "osv",
      "references": [
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164",
        "https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-12164",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441241,
  "published_at": "2018-07-26T16:29:00.327+00:00"
}