Advisory Details

May 17th, 2023

Apple GarageBand MIDI File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-23-644
ZDI-CAN-17199

CVE ID CVE-2023-27938
CVSS SCORE 3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS Apple
AFFECTED PRODUCTS GarageBand
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple GarageBand. 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 a function in MACore.framework. Crafted data in a MIDI file can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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/HT213650
DISCLOSURE TIMELINE
  • 2022-04-27 - Vulnerability reported to vendor
  • 2023-05-17 - Coordinated public release of advisory
CREDIT Mickey Jin (@patch1t) of Trend Micro
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