Advisory Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the libFontValidation library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.

The specific flaw exists within the parsing of font glyph YCoordinate positions. 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 code in the context of the current process.

• 2024-09-25 - Vulnerability reported to vendor
• 2025-01-09 - Coordinated public release of advisory
• 2025-01-09 - Advisory Updated