Buffer overflow in WPE WebKit and WebKitGTK+ - CVE-2019-8821

Vulnerability identifier: #VU23168

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-8821

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing maliciously crafted web content. A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

WPE WebKit
WebKitGTK+
Gentoo Linux
Red Hat Enterprise Linux for x86_64
HPE Helion Openstack
Red Hat Enterprise Linux for IBM z Systems
SUSE OpenStack Cloud
Red Hat Enterprise Linux for Power, little endian
SUSE OpenStack Cloud Crowbar
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
Opensuse
webkit2gtk (Alpine package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
webkit2gtk3 (Red Hat package)
net-libs/webkit-gtk
libjavascriptcoregtk-4_0-18
libjavascriptcoregtk-4_0-18-debuginfo
libwebkit2gtk-4_0-37
libwebkit2gtk-4_0-37-debuginfo
typelib-1_0-JavaScriptCore-4_0
typelib-1_0-WebKit2-4_0
typelib-1_0-WebKit2WebExtension-4_0
webkit2gtk-4_0-injected-bundles
webkit2gtk-4_0-injected-bundles-debuginfo
webkit2gtk3-debugsource
libwebkit2gtk3-lang
webkit2gtk3-devel

Install updates from vendor's website.

WPE WebKit - update to 2.24.3
WebKitGTK+ - update to 2.24.4
webkit2gtk (Alpine package) - update to 2.26.2-r0
webkit2gtk3 (Red Hat package) - update to 2.24.4-2.el8_1
net-libs/webkit-gtk - update to 2.26.4
libjavascriptcoregtk-4_0-18 - update to 2.34.3-2.82.1
libjavascriptcoregtk-4_0-18-debuginfo - update to 2.34.3-2.82.1
libwebkit2gtk-4_0-37 - update to 2.34.3-2.82.1
libwebkit2gtk-4_0-37-debuginfo - update to 2.34.3-2.82.1
typelib-1_0-JavaScriptCore-4_0 - update to 2.34.3-2.82.1
typelib-1_0-WebKit2-4_0 - update to 2.34.3-2.82.1
typelib-1_0-WebKit2WebExtension-4_0 - update to 2.34.3-2.82.1
webkit2gtk-4_0-injected-bundles - update to 2.34.3-2.82.1
webkit2gtk-4_0-injected-bundles-debuginfo - update to 2.34.3-2.82.1
webkit2gtk3-debugsource - update to 2.34.3-2.82.1
libwebkit2gtk3-lang - update to 2.34.3-2.82.1
webkit2gtk3-devel - update to 2.34.3-2.82.1

• https://webkitgtk.org/security/WSA-2019-0006.html

• Multiple vulnerabilities in WebKitGTK and WPE WebKit
• OpenSUSE Linux update for webkit2gtk3
• OpenSUSE Linux update for webkit2gtk3
• Buffer overflow in webkit2gtk (Alpine package)
• Red Hat Enterprise Linux 8 security update for WebKitGTK
• SUSE update for webkit2gtk3
• Gentoo update for WebkitGTK+