Information disclosure in macOS - CVE-2021-30888

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Main Vulnerability Database Vulnerabilities #VU57741

Information disclosure in macOS - CVE-2021-30888

Published: October 27, 2021


Vulnerability identifier: #VU57741
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30888
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists in WebKit. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior.


Affected software

macOS
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
watchOS
Anolis OS
HPE Helion Openstack
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
tvOS
iPadOS
Apple iOS
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Module for Basesystem
WPE WebKit
WebKitGTK+
Apple Safari
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
webkit2gtk3
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
webkit2gtk3 (Red Hat package)
webkitgtk4 (Red Hat package)

How to mitigate CVE-2021-30888

Install updates from vendor's website.

macOS - update to 12.0.1 21A559
WPE WebKit - update to 2.34.0
WebKitGTK+ - update to 2.34.0
watchOS - update to 8.1 19R570
Apple Safari - update to 15.1
tvOS - update to 15.1 19J572
iPadOS - addressed in versions 14.8.1 18H107, 15.1 19B74, 15.1 19B75
Apple iOS - addressed in versions 14.8.1 18H107, 15.1 19B74
libjavascriptcoregtk-4_0-18 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libjavascriptcoregtk-4_0-18-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk-4_0-37-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-JavaScriptCore-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
typelib-1_0-WebKit2WebExtension-4_0 - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk-4_0-injected-bundles - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk-4_0-injected-bundles-debuginfo - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-debugsource - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
libwebkit2gtk3-lang - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3-devel - addressed in versions 2.34.3-2.82.1, 2.34.3-3.92.1, 2.34.3-23.3
webkit2gtk3 - update to 2.34.6-1
webkit2gtk3-devel - update to 2.34.6-1
webkit2gtk3-jsc - update to 2.34.6-1
webkit2gtk3-jsc-devel - update to 2.34.6-1
webkit2gtk3 (Red Hat package) - update to 2.34.6-1.el8
webkitgtk4 (Red Hat package) - update to 2.48.3-2.el7_9

External References

Related Security Bulletins