Advisory Details

October 2nd, 2024

Apple macOS ImageIO KTX Image Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-24-1312
ZDI-CAN-23980

CVE ID CVE-2024-40784
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 macOS
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. 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 parsing of KTX files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current user.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
https://support.apple.com/en-us/HT214119
DISCLOSURE TIMELINE
  • 2024-06-05 - Vulnerability reported to vendor
  • 2024-10-02 - Coordinated public release of advisory
  • 2024-10-02 - Advisory Updated
CREDIT Junsung Lee
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