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

 

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

Published: December 16, 2019


Vulnerability identifier: #VU23613
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-8846
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apple Inc.
Affected software:
Apple Safari

Detailed vulnerability description

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.


How to mitigate CVE-2019-8846

Install updates from vendor's website.

Sources