{"api_version":"1","generated_at":"2026-04-23T02:57:45+00:00","cve":"CVE-2019-18281","urls":{"html":"https://cve.report/CVE-2019-18281","api":"https://cve.report/api/cve/CVE-2019-18281.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-18281","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-18281"},"summary":{"title":"CVE-2019-18281","description":"An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2019-10-23 15:15:00","updated_at":"2020-02-18 20:15:00"},"problem_types":["CWE-119"],"metrics":[],"references":[{"url":"https://www.debian.org/security/2019/dsa-4556","name":"DSA-4556","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4556-1 qtbase-opensource-src","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784","name":"https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784","refsource":"MISC","tags":["Issue Tracking","Third Party Advisory"],"title":"Bug #1848784 “Crash in Qt 5.12.2” : Bugs : qtbase-opensource-src package : Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/271889","name":"https://codereview.qt-project.org/c/qt/qtbase/+/271889","refsource":"MISC","tags":["Patch","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202003-60","name":"GLSA-202003-60","refsource":"GENTOO","tags":[],"title":"QtCore: Multiple vulnerabilities (GLSA 202003-60) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://seclists.org/bugtraq/2019/Nov/4","name":"20191104 [SECURITY] [DSA 4556-1] qtbase-opensource-src security update","refsource":"BUGTRAQ","tags":["Mailing List","Third Party Advisory"],"title":"Bugtraq: [SECURITY] [DSA 4556-1] qtbase-opensource-src security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugreports.qt.io/browse/QTBUG-77819","name":"https://bugreports.qt.io/browse/QTBUG-77819","refsource":"MISC","tags":["Permissions Required"],"title":"Qt Account Login","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/4275-1/","name":"USN-4275-1","refsource":"UBUNTU","tags":[],"title":"USN-4275-1: Qt vulnerabilities | Ubuntu security notices | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-18281","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18281","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"qt","cpe5":"qtbase","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"qt","cpe5":"qtbase","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18281","vulnerable":"1","versionEndIncluding":"5.11.3","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"qt","cpe5":"qtbase","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2019-18281","qid":"671552","title":"EulerOS Security Update for qt5-qtbase (EulerOS-SA-2022-1584)"},{"cve":"CVE-2019-18281","qid":"960739","title":"Rocky Linux Security Update for qt5 (RLSA-2020:1665)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2019-18281","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":"An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://bugreports.qt.io/browse/QTBUG-77819","refsource":"MISC","name":"https://bugreports.qt.io/browse/QTBUG-77819"},{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/271889","refsource":"MISC","name":"https://codereview.qt-project.org/c/qt/qtbase/+/271889"},{"url":"https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784","refsource":"MISC","name":"https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784"},{"refsource":"DEBIAN","name":"DSA-4556","url":"https://www.debian.org/security/2019/dsa-4556"},{"refsource":"BUGTRAQ","name":"20191104 [SECURITY] [DSA 4556-1] qtbase-opensource-src security update","url":"https://seclists.org/bugtraq/2019/Nov/4"},{"refsource":"UBUNTU","name":"USN-4275-1","url":"https://usn.ubuntu.com/4275-1/"},{"refsource":"GENTOO","name":"GLSA-202003-60","url":"https://security.gentoo.org/glsa/202003-60"}]}},"nvd":{"publishedDate":"2019-10-23 15:15:00","lastModifiedDate":"2020-02-18 20:15:00","problem_types":["CWE-119"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"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:qt:qtbase:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.0","versionEndIncluding":"5.11.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12.0","versionEndExcluding":"5.12.5","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"18281","Ordinal":"158655","Title":"CVE-2019-18281","CVE":"CVE-2019-18281","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"18281","Ordinal":"1","NoteData":"An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"18281","Ordinal":"2","NoteData":"2019-10-23","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"18281","Ordinal":"3","NoteData":"2020-03-26","Type":"Other","Title":"Modified"}]}}}