Advisory Details

November 14th, 2023

Apple macOS Hydra ABC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2023-42856
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. Interaction with the Hydra framework is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the Hydra framework. Crafted data in an ABC image can trigger 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 process.
ADDITIONAL DETAILS	Apple has issued an update to correct this vulnerability. More details can be found at: https://support.apple.com/HT213984
DISCLOSURE TIMELINE	2023-06-21 - Vulnerability reported to vendor 2023-11-14 - Coordinated public release of advisory
CREDIT	Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative

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