{"id":"UBUNTU-CVE-2018-18398","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.","modified":"2026-05-20T16:03:33.722813621Z","published":"2018-10-19T22:29:00Z","upstream":["CVE-2018-18398"],"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"}],"affected":[{"package":{"name":"thunar","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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":"1.6.11-0ubuntu0.16.04.2"},{"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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-2-0","binary_version":"1.6.15-0ubuntu1.18.04.1"},{"binary_name":"thunar","binary_version":"1.6.15-0ubuntu1.18.04.1"},{"binary_version":"1.6.15-0ubuntu1.18.04.1","binary_name":"thunar-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.9-1","1.8.11-1","1.8.12-1","1.8.14-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.14-0ubuntu1","binary_name":"libthunarx-3-0"},{"binary_version":"1.8.14-0ubuntu1","binary_name":"thunar"},{"binary_name":"thunar-data","binary_version":"1.8.14-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.16.8-1","4.16.10-1"],"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.18.7-1","4.18.8-1","4.18.8-1build2","4.18.8-1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"4.18.8-1build3","binary_name":"gir1.2-thunarx-3.0"},{"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.20.2-1","4.20.4-1"],"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_version":"4.20.4-1","binary_name":"thunar-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}},{"package":{"name":"thunar","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/thunar?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.20.4-1","4.20.5-1","4.20.7-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.20.7-1","binary_name":"gir1.2-thunarx-3.0"},{"binary_version":"4.20.7-1","binary_name":"libthunarx-3-0"},{"binary_name":"thunar","binary_version":"4.20.7-1"},{"binary_name":"thunar-data","binary_version":"4.20.7-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18398.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}