Use-after-free in Apple Safari - CVE-2019-8846

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Main Vulnerability Database Vulnerabilities #VU23613

Use-after-free in Apple Safari - CVE-2019-8846

Published: December 16, 2019


Vulnerability identifier: #VU23613
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-8846
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the SVG Marker Element feature of Apple Safari's WebKit. A remote attacker can use a specially crafted HTML web page, when opened by a victim, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

Apple Safari
Arch Linux
Gentoo Linux
Debian 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 CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for IBM z Systems
Fedora
Service Telemetry Framework
webkit2gtk (Alpine package)
gnome-remote-desktop (Red Hat package)
pipewire0.2 (Red Hat package)
pipewire (Red Hat package)
webrtc-audio-processing (Red Hat package)
dleyna-renderer (Red Hat package)
LibRaw (Red Hat package)
vte291 (Red Hat package)
PackageKit (Red Hat package)
xdg-desktop-portal-gtk (Red Hat package)
xdg-desktop-portal (Red Hat package)
frei0r-plugins (Red Hat package)
potrace (Red Hat package)
gtk-doc (Red Hat package)
gvfs (Red Hat package)
tracker (Red Hat package)
webkit2gtk
webkit2gtk3
webkit2gtk (Debian package)
net-libs/webkit-gtk
webkit2gtk3 (Red Hat package)
libsoup (Red Hat package)
gtk3 (Red Hat package)
gnome-photos (Red Hat package)
gnome-session (Red Hat package)
nautilus (Red Hat package)
gnome-control-center (Red Hat package)
pygobject3 (Red Hat package)
gnome-terminal (Red Hat package)
gdm (Red Hat package)
gsettings-desktop-schemas (Red Hat package)
gnome-settings-daemon (Red Hat package)
gnome-shell-extensions (Red Hat package)
gnome-shell (Red Hat package)
mutter (Red Hat package)
Quay
OpenShift Data Foundation (formerly OpenShift Container Storage)

How to mitigate CVE-2019-8846

Install updates from vendor's website.

Apple Safari - update to 13.0.3
Quay - update to 3.3.3
gnome-remote-desktop (Red Hat package) - update to 0.1.8-3.el8
pipewire0.2 (Red Hat package) - update to 0.2.7-6.el8
pipewire (Red Hat package) - update to 0.3.6-1.el8
webrtc-audio-processing (Red Hat package) - update to 0.3-9.el8
dleyna-renderer (Red Hat package) - update to 0.6.0-3.el8
LibRaw (Red Hat package) - update to 0.19.5-2.el8
vte291 (Red Hat package) - update to 0.52.4-2.el8
PackageKit (Red Hat package) - update to 1.1.12-6.el8
xdg-desktop-portal-gtk (Red Hat package) - update to 1.6.0-1.el8
xdg-desktop-portal (Red Hat package) - update to 1.6.0-2.el8
frei0r-plugins (Red Hat package) - update to 1.6.1-7.el8
potrace (Red Hat package) - update to 1.15-3.el8
gtk-doc (Red Hat package) - update to 1.28-2.el8
gvfs (Red Hat package) - update to 1.36.2-10.el8
tracker (Red Hat package) - update to 2.1.5-2.el8
webkit2gtk - update to 2.26.3-1
webkit2gtk3 - addressed in versions 2.26.3-1.fc30, 2.26.3-1.fc31
webkit2gtk (Debian package) - update to 2.26.3-1~deb10u1
net-libs/webkit-gtk - update to 2.26.4
webkit2gtk3 (Red Hat package) - update to 2.28.4-1.el8
libsoup (Red Hat package) - update to 2.62.3-2.el8
gtk3 (Red Hat package) - update to 3.22.30-6.el8
gnome-photos (Red Hat package) - update to 3.28.1-3.el8
gnome-session (Red Hat package) - update to 3.28.1-10.el8
nautilus (Red Hat package) - update to 3.28.1-14.el8
gnome-control-center (Red Hat package) - update to 3.28.2-22.el8
pygobject3 (Red Hat package) - update to 3.28.3-2.el8
gnome-terminal (Red Hat package) - update to 3.28.3-2.el8
gdm (Red Hat package) - update to 3.28.3-34.el8
gsettings-desktop-schemas (Red Hat package) - update to 3.32.0-5.el8
gnome-settings-daemon (Red Hat package) - update to 3.32.0-11.el8
gnome-shell-extensions (Red Hat package) - update to 3.32.1-11.el8
gnome-shell (Red Hat package) - update to 3.32.2-20.el8
mutter (Red Hat package) - update to 3.32.2-48.el8

External References

Related Security Bulletins