CVE-2019-8375

CRITICAL

Webkitgtk < 2.23.90 - Memory Corruption

Title source: rule

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).

Exploits (1)

exploitdb WORKING POC

by Dhiraj Mishra · textdoslinux

https://www.exploit-db.com/exploits/46465

View Code ZIP pw:eip

References (8)

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html

[Issue Tracking, Permissions Required, Third Party Advisory] https://bugs.webkit.org/show_bug.cgi?id=184875

[Patch, Third Party Advisory] https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531

[Patch, Vendor Advisory] https://trac.webkit.org/changeset/241515/webkit

[Third Party Advisory] https://usn.ubuntu.com/3948-1/

[Exploit, Third Party Advisory, VDB Entry] https://www.exploit-db.com/exploits/46465/

[Exploit, Third Party Advisory] https://www.inputzero.io/2019/02/fuzzing-webkit.html

Scores

CVSS v3 9.8

EPSS 0.1928

EPSS Percentile 95.4%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-119

Status published

Products (6)

canonical/ubuntu_linux 18.04

canonical/ubuntu_linux 18.10

opensuse/leap 15.0

opensuse/leap 42.3

webkitgtk/webkitgtk < 2.23.90

webkitgtk/webkitgtk\+ < 2.22.6

Published Feb 24, 2019

Tracked Since Feb 18, 2026