CVE-2019-8375
Critical
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).
SeverityCritical
CVSS9.8
Exploit probability—
ProductWebkitgtk
PublishedFeb 24, 2019
First seenFeb 24, 2019
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| webkitgtk webkitgtk | v ≤ 2.23.90 | — |
| webkitgtk webkitgtk\+ | v ≤ 2.22.6 | — |
| opensuse leap | 15.0, 42.3 | — |
| canonical ubuntu_linux | 18.04, 18.10 | — |
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