ubuntu-cve-2018-18398
Vulnerability from osv_ubuntu
Published
2018-10-19 22:29
Modified
2026-05-20 14:50
Summary
Details

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.

Severity
4.7 (Medium)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libthunarx-2-0",
            "binary_version": "1.6.11-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "thunar",
            "binary_version": "1.6.11-0ubuntu0.16.04.2"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "1.6.11-0ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@1.6.11-0ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.10-1",
        "1.6.10-2",
        "1.6.10-2ubuntu1",
        "1.6.11-0ubuntu0.16.04.1",
        "1.6.11-0ubuntu0.16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libthunarx-2-0",
            "binary_version": "1.6.15-0ubuntu1.18.04.1"
          },
          {
            "binary_name": "thunar",
            "binary_version": "1.6.15-0ubuntu1.18.04.1"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "1.6.15-0ubuntu1.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@1.6.15-0ubuntu1.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.12-1",
        "1.6.13-1",
        "1.6.13-2",
        "1.6.14-1",
        "1.6.14-1ubuntu1",
        "1.6.15-0ubuntu1",
        "1.6.15-0ubuntu1.18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libthunarx-3-0",
            "binary_version": "1.8.14-0ubuntu1"
          },
          {
            "binary_name": "thunar",
            "binary_version": "1.8.14-0ubuntu1"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "1.8.14-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@1.8.14-0ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.9-1",
        "1.8.11-1",
        "1.8.12-1",
        "1.8.14-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-thunarx-3.0",
            "binary_version": "4.16.10-1"
          },
          {
            "binary_name": "libthunarx-3-0",
            "binary_version": "4.16.10-1"
          },
          {
            "binary_name": "thunar",
            "binary_version": "4.16.10-1"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "4.16.10-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@4.16.10-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.16.8-1",
        "4.16.10-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-thunarx-3.0",
            "binary_version": "4.18.8-1build3"
          },
          {
            "binary_name": "libthunarx-3-0",
            "binary_version": "4.18.8-1build3"
          },
          {
            "binary_name": "thunar",
            "binary_version": "4.18.8-1build3"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "4.18.8-1build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@4.18.8-1build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.18.7-1",
        "4.18.8-1",
        "4.18.8-1build2",
        "4.18.8-1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-thunarx-3.0",
            "binary_version": "4.20.4-1"
          },
          {
            "binary_name": "libthunarx-3-0",
            "binary_version": "4.20.4-1"
          },
          {
            "binary_name": "thunar",
            "binary_version": "4.20.4-1"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "4.20.4-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@4.20.4-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.20.2-1",
        "4.20.4-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-thunarx-3.0",
            "binary_version": "4.20.7-1"
          },
          {
            "binary_name": "libthunarx-3-0",
            "binary_version": "4.20.7-1"
          },
          {
            "binary_name": "thunar",
            "binary_version": "4.20.7-1"
          },
          {
            "binary_name": "thunar-data",
            "binary_version": "4.20.7-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "thunar",
        "purl": "pkg:deb/ubuntu/thunar@4.20.7-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.20.4-1",
        "4.20.5-1",
        "4.20.7-1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2018-18398",
  "modified": "2026-05-20T14:50:54Z",
  "published": "2018-10-19T22:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-18398"
    },
    {
      "type": "REPORT",
      "url": "https://0xd0ff9.wordpress.com/2018/10/18/cve-2018-18398/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-18398"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-18398"
  ]
}



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