Advisory Details

January 20th, 2025

Apple WebKit WebCore ContainerNode Use-After-Free Remote Code Execution Vulnerability

ZDI-25-048
ZDI-CAN-24012

CVE ID CVE-2024-27856
CVSS SCORE 8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Apple
AFFECTED PRODUCTS WebKit
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple WebKit. User interaction is required to exploit this vulnerability.

The specific flaw exists within the processing of Text objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/120903
DISCLOSURE TIMELINE
  • 2024-05-09 - Vulnerability reported to vendor
  • 2025-01-20 - Coordinated public release of advisory
  • 2025-01-20 - Advisory Updated
CREDIT Junsung Lee
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