CVE-2019-8375
CRITICALEPSS 97th pctlDescription
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).
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 97% of all known CVEs.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html
- https://bugs.webkit.org/show_bug.cgi?id=184875
- https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531
- https://trac.webkit.org/changeset/241515/webkit
- https://usn.ubuntu.com/3948-1/
- https://www.exploit-db.com/exploits/46465/
- https://www.inputzero.io/2019/02/fuzzing-webkit.html
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.