Cross-site scripting - CVE-2019-8649

Vulnerability identifier: #VU33359

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

CVE-ID: CVE-2019-8649

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

A logic issue existed in the handling of synchronous page loads. This issue was addressed with improved state management. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, Safari 12.1.2, iTunes for Windows 12.9.6, iCloud for Windows 7.13, iCloud for Windows 10.6. Processing maliciously crafted web content may lead to universal cross site scripting.

Arch Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
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)

Install update from vendor's website.

webkit2gtk (Alpine package) - update to 2.26.2-r0
webkit2gtk3 (Red Hat package) - update to 2.24.4-2.el8_1

• https://support.apple.com/HT210346
• https://support.apple.com/HT210348
• https://support.apple.com/HT210351
• https://support.apple.com/HT210355
• https://support.apple.com/HT210356
• https://support.apple.com/HT210357
• https://support.apple.com/HT210358

• Cross-site scripting in webkit2gtk (Alpine package)
• Red Hat Enterprise Linux 8 security update for WebKitGTK
• Arch Linux update for webkit2gtk