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).
Metrics
CVSS 3.0 9.8/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- 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
Timeline
- Published
- Feb 24, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified