{"id":"CVE-2019-8375","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-8375","generatedAt":"2026-11-05T03:10:16.104Z","title":"The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of…","description":"The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of service (Buffer Overflow) or possibly have unspecified other impact, related to UIProcess/API/gtk/WebKitScriptDialogGtk.cpp, UIProcess/API/gtk/WebKitScriptDialogImpl.cpp, and UIProcess/API/gtk/WebKitWebViewGtk.cpp, as demonstrated by GNOME Web (aka Epiphany).","published":"2019-02-24T13:29:00.000Z","lastModified":"2026-06-17T02:41:55.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["webkitgtk/webkitgtk","webkitgtk/webkitgtk\\+","opensuse/leap","canonical/ubuntu linux"],"epss":{"score":0.15697,"percentile":0.96865,"date":"2026-11-03","history":[{"date":"2026-09-21","score":0.1318,"percentile":0.96253},{"date":"2026-09-22","score":0.16113,"percentile":0.96773}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-02-28","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46465,"kind":"exploit","title":"WebKitGTK 2.23.90 / WebKitGTK+ 2.22.6 - Denial of Service","url":"https://www.exploit-db.com/exploits/46465","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/46465.txt","file":"exploits/linux/dos/46465.txt","published":"2019-02-28","added":"2019-02-28","updated":"2019-02-28","author":"Dhiraj Mishra","type":"dos","platform":"linux","port":null,"verified":false,"codes":["CVE-2019-8375"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 15.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=184875","tags":["Issue Tracking","Permissions Required","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://trac.webkit.org/changeset/241515/webkit","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3948-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/46465/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.inputzero.io/2019/02/fuzzing-webkit.html","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.webkit.org/show_bug.cgi?id=184875","tags":["Issue Tracking","Permissions Required","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://trac.webkit.org/changeset/241515/webkit","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3948-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46465/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.inputzero.io/2019/02/fuzzing-webkit.html","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-8375","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}