CVE-2024-27861 in macOS
Summary
by MITRE • 09/17/2024
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15. An application may be able to read restricted memory.
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Analysis
by VulDB Data Team • 10/11/2024
The vulnerability identified as CVE-2024-27861 represents a memory safety issue within macOS Sequoia 15 that could potentially allow an application to access restricted memory regions. This type of vulnerability falls under the broader category of memory corruption flaws that can be exploited to bypass security boundaries and access sensitive data. The issue was specifically addressed through enhanced memory handling mechanisms in the operating system update, indicating that the root cause involved improper memory management or access control within the kernel or system libraries.
The technical nature of this vulnerability suggests that an application could potentially leverage memory handling flaws to read memory locations that should normally be restricted to privileged processes or system components. This type of memory access violation typically occurs when the system fails to properly validate memory access requests or when memory protection mechanisms are insufficiently enforced. The vulnerability is classified as a memory safety issue that could enable information disclosure through unauthorized memory reads, potentially exposing sensitive system data, user credentials, or other confidential information stored in restricted memory areas.
From an operational impact perspective, this vulnerability creates a significant security risk for macOS systems running versions prior to Sequoia 15. Applications that could exploit this flaw might gain access to memory regions containing sensitive data such as encryption keys, user authentication tokens, or system configuration details. The potential for information disclosure through such memory access violations aligns with common attack patterns documented in the attack tactics and techniques framework, particularly those involving privilege escalation and information gathering. The issue demonstrates how memory handling deficiencies can create persistent security weaknesses that require system-level patches to remediate effectively.
The fix implemented in macOS Sequoia 15 addresses the root cause through improved memory handling mechanisms that likely include enhanced validation of memory access requests, stricter enforcement of memory protection boundaries, and improved memory management routines. This approach aligns with industry best practices for memory safety and follows the principle of least privilege by ensuring that applications cannot access memory regions beyond their designated permissions. The remediation strategy reflects standard security practices for addressing memory corruption vulnerabilities and demonstrates the importance of regular system updates in maintaining security posture. Organizations should prioritize deployment of the macOS Sequoia 15 update to protect against potential exploitation of this vulnerability, as it represents a direct threat to system confidentiality and data integrity. The fix specifically addresses the memory access control mechanisms that were previously insufficient to prevent unauthorized memory reads, thereby restoring proper security boundaries within the operating system's memory management architecture.