{"api_version":"1","generated_at":"2026-04-23T06:59:32+00:00","cve":"CVE-2018-20167","urls":{"html":"https://cve.report/CVE-2018-20167","api":"https://cve.report/api/cve/CVE-2018-20167.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-20167","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20167"},"summary":{"title":"CVE-2018-20167","description":"Terminology before 1.3.1 allows Remote Code Execution because popmedia is mishandled, as demonstrated by an unsafe \"cat README.md\" command when \\e}pn is used. A popmedia control sequence can allow the malicious execution of executable file formats registered in the X desktop share MIME types (/usr/share/applications). The control sequence defers unknown file types to the handle_unknown_media() function, which executes xdg-open against the filename specified in the sequence. The use of xdg-open for all unknown file types allows executable file formats with a registered shared MIME type to be executed. An attacker can achieve remote code execution by introducing an executable file and a plain text file containing the control sequence through a fake software project (e.g., in Git or a tarball). When the control sequence is rendered (such as with cat), the executable file will be run.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-12-17 05:29:00","updated_at":"2019-10-03 00:03:00"},"problem_types":["CWE-74"],"metrics":[],"references":[{"url":"https://phab.enlightenment.org/T7504","name":"https://phab.enlightenment.org/T7504","refsource":"MISC","tags":["Exploit","Mitigation","Vendor Advisory"],"title":"⚓ T7504 media_unknown_handle in \\e}pn<FILE>\\0 control sequence allows remote code execution (RCE)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://phab.enlightenment.org/rTRM1ac204da9148e7bccb1b5f34b523e2094dfc39e2","name":"https://phab.enlightenment.org/rTRM1ac204da9148e7bccb1b5f34b523e2094dfc39e2","refsource":"MISC","tags":["Mitigation","Patch","Vendor Advisory"],"title":"rTRM1ac204da9148","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.enlightenment.org/news/2018-12-16-terminology-1.3.1","name":"https://www.enlightenment.org/news/2018-12-16-terminology-1.3.1","refsource":"MISC","tags":["Mitigation","Vendor Advisory"],"title":"Terminology 1.3.1 Release","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-20167","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20167","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"20167","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"enlightenment","cpe5":"terminology","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"20167","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"enlightenment","cpe5":"terminology","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-20167","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Terminology before 1.3.1 allows Remote Code Execution because popmedia is mishandled, as demonstrated by an unsafe \"cat README.md\" command when \\e}pn is used. 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When the control sequence is rendered (such as with cat), the executable file will be run."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.enlightenment.org/news/2018-12-16-terminology-1.3.1","refsource":"MISC","url":"https://www.enlightenment.org/news/2018-12-16-terminology-1.3.1"},{"name":"https://phab.enlightenment.org/T7504","refsource":"MISC","url":"https://phab.enlightenment.org/T7504"},{"name":"https://phab.enlightenment.org/rTRM1ac204da9148e7bccb1b5f34b523e2094dfc39e2","refsource":"MISC","url":"https://phab.enlightenment.org/rTRM1ac204da9148e7bccb1b5f34b523e2094dfc39e2"}]}},"nvd":{"publishedDate":"2018-12-17 05:29:00","lastModifiedDate":"2019-10-03 00:03:00","problem_types":["CWE-74"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":6.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:enlightenment:terminology:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"20167","Ordinal":"140430","Title":"CVE-2018-20167","CVE":"CVE-2018-20167","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"20167","Ordinal":"1","NoteData":"Terminology before 1.3.1 allows Remote Code Execution because popmedia is mishandled, as demonstrated by an unsafe \"cat README.md\" command when \\e}pn is used. A popmedia control sequence can allow the malicious execution of executable file formats registered in the X desktop share MIME types (/usr/share/applications). The control sequence defers unknown file types to the handle_unknown_media() function, which executes xdg-open against the filename specified in the sequence. The use of xdg-open for all unknown file types allows executable file formats with a registered shared MIME type to be executed. An attacker can achieve remote code execution by introducing an executable file and a plain text file containing the control sequence through a fake software project (e.g., in Git or a tarball). When the control sequence is rendered (such as with cat), the executable file will be run.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"20167","Ordinal":"2","NoteData":"2018-12-17","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"20167","Ordinal":"3","NoteData":"2018-12-17","Type":"Other","Title":"Modified"}]}}}