CVE-2019-8375

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).

• CWE-119

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.htmlMailing List, Third Party Advisory
• https://bugs.webkit.org/show_bug.cgi?id=184875Issue Tracking, Permissions Required, Third Party Advisory
• https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531Patch, Third Party Advisory
• https://trac.webkit.org/changeset/241515/webkitPatch, Vendor Advisory
• https://usn.ubuntu.com/3948-1/Third Party Advisory
• https://www.exploit-db.com/exploits/46465/Exploit, Third Party Advisory, VDB Entry
• https://www.inputzero.io/2019/02/fuzzing-webkit.htmlExploit, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.htmlMailing List, Third Party Advisory
• https://bugs.webkit.org/show_bug.cgi?id=184875Issue Tracking, Permissions Required, Third Party Advisory
• https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531Patch, Third Party Advisory
• https://trac.webkit.org/changeset/241515/webkitPatch, Vendor Advisory
• https://usn.ubuntu.com/3948-1/Third Party Advisory
• https://www.exploit-db.com/exploits/46465/Exploit, Third Party Advisory, VDB Entry
• https://www.inputzero.io/2019/02/fuzzing-webkit.htmlExploit, Third Party Advisory

Published

Feb 24, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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