Advisory Details

August 4th, 2023

Apple Safari PDF Plugin Type Confusion Remote Code Execution Vulnerability

ZDI-23-1020
ZDI-CAN-19331

CVE ID CVE-2023-32358
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 Safari
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the WebKit PDF plugin. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. 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/en-ca/HT213670
DISCLOSURE TIMELINE
  • 2022-11-21 - Vulnerability reported to vendor
  • 2023-08-04 - Coordinated public release of advisory
CREDIT Anonymous
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