Security advisory

{
  "id": "1e570243ba987d6a31b7c30d21e634a3dc100a8a40441c91aaff4f7e398742f2",
  "url": "https://osv.dev/vulnerability/CVE-2018-18398",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18398",
    "summary": "Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV. This could potentially be exploited by an arbitrary local user who creates files in /tmp before the victim uses this input method.",
    "evidence": "osv:CVE-2018-18398",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-18398",
      "aliases": [
        "CVE-2018-18398"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/xfce-mirror/thunar",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "dd18b985e0e42bfda9d7278351522fc3c64ad495"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:xfce:thunar:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.6.15"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "thunar-1.6.14",
            "thunar-1.6.13",
            "thunar-1.6.12",
            "thunar-1.6.11",
            "thunar-1.6.10",
            "thunar-1.6.9",
            "thunar-1.6.8",
            "thunar-1.6.7",
            "thunar-1.6.6",
            "thunar-1.6.5",
            "thunar-1.6.4",
            "thunar-1.6.3",
            "thunar-1.6.2",
            "thunar-1.6.1",
            "thunar-1.6.0",
            "thunar-1.5.3",
            "thunar-1.5.2",
            "thunar-1.5.1",
            "thunar-1.5.0",
            "thunar-1.4.0",
            "thunar-1.3.2",
            "thunar-1.3.1",
            "thunar-1.3.0",
            "thunar-1.2.0",
            "thunar-1.1.6",
            "thunar-1.1.5",
            "thunar-1.1.4",
            "thunar-1.1.3",
            "thunar-1.1.2",
            "thunar-1.1.1",
            "thunar-1.1.0",
            "thunar-1.0.1",
            "thunar-0.9.99.1",
            "xfce-4.6beta3",
            "thunar-0.9.93",
            "xfce-4.6beta2",
            "thunar-0.9.92",
            "xfce-4.6beta1",
            "thunar-0.9.91",
            "xfce-4.6alpha",
            "thunar-0.9.80",
            "xfce-4.4.2",
            "thunar-0.9.0",
            "xfce-4.4beta2",
            "thunar-0.3.2beta2",
            "xfce-4.4beta1",
            "thunar-0.3.0beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18398.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:44.090909558Z",
      "provider": "osv",
      "references": [
        "https://0xd0ff9.wordpress.com/2018/10/18/cve-2018-18398/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:xfce:xfce:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "xfce:xfce",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "4.12"
                  },
                  {
                    "fixed": "4.12"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-18398",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435784,
  "published_at": "2018-10-19T22:29:01.68+00:00"
}