Origin validation error in WPE WebKit and WebKitGTK+ - CVE-2019-8515

Vulnerability identifier: #VU23362

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-8515

CWE-ID: CWE-346

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the affected software does not properly verify that the source of data or communication is valid when processing maliciously crafted web content. A remote attacker can disclose sensitive user information from another domain.

WPE WebKit
WebKitGTK+
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Opensuse
webkitgtk4 (Red Hat package)

Install updates from vendor's website.

WPE WebKit - update to 2.22.4
WebKitGTK+ - update to 2.22.6
webkitgtk4 (Red Hat package) - update to 2.22.7-2.el7

• https://webkitgtk.org/security/WSA-2019-0002.html

• Origin validation error in WebKitGTK WebKitGTK+
• OpenSUSE Linux update for webkit2gtk3
• OpenSUSE Linux update for webkit2gtk3
• Red Hat Enterprise Linux 7 update for webkitgtk4