An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in GarageBand for macOS 10.4.8. Parsing a maliciously crafted MIDI file may lead to an unexpected application termination or arbitrary code execution.
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.
