As per the recent vulnerability disclosure, a use-after-free vulnerability (CVE-2022-32914) was identified in macOS Big Sur 11.7, macOS Ventura 13, iOS 16, watchOS 9, macOS Monterey 12.6, and tvOS 16. This vulnerability arises from inadequate memory management, potentially allowing an attacker to exploit the issue by running arbitrary code with kernel-level privileges. By addressing this use-after-free issue, the security and stability of the affected systems are significantly enhanced.

Original References

1. CVE-2022-32914 - National Vulnerability Database (NVD)
2. Apple Security Advisory

A brief overview of Use-After-Free Vulnerability

A use-after-free (UAF) vulnerability occurs when a program continues to use a memory pointer even after deallocating the memory. This can lead to arbitrary code execution, potentially allowing an attacker to escalate their privileges within the exploited system. In the case of CVE-2022-32914, the vulnerability could facilitate an attacker to execute arbitrary code with kernel privileges.

Code Snippet

To help illustrate the use-after-free vulnerability, consider the following simple example written in the C programming language:

#include <stdio.h>
#include <stdlib.h>

int main() {
    int *ptr;

    // Allocating memory
    ptr = (int *) malloc(sizeof(int));
    *ptr = xDEAD;

    // Deallocating memory

    // Using the pointer after it was freed
    printf("Data at ptr: x%X\n", *ptr);

    return ;

In the code snippet above, memory is allocated for an integer pointer ptr, assigned a value, and then deallocated. However, the pointer continues to be used after the memory has been released, which leaves the potential for memory corruption and exploitation by an attacker.

Exploit Details

While specific exploit details regarding CVE-2022-32914 have not been released to ensure user security and avoid unintended consequences, the issue has been patched in the following versions:

tvOS 16

To mitigate the risk and protect devices from potential exploitation, users should update to the latest software version for their respective devices. This can be done through the appropriate settings menu or by visiting the official Apple support website and following the relevant instructions.


CVE-2022-32914 highlights the importance of proper memory management techniques to avoid use-after-free vulnerabilities and maintain secure devices across the macOS, iOS, watchOS, and tvOS platforms. Regularly updating software to stay ahead of potential security threats is prudent for all users. By increasing awareness and addressing vulnerabilities like CVE-2022-32914, Apple and its users can help mitigate the risks associated with these issues and promote a safer, more secure ecosystem for its suite of products.


Published on: 11/01/2022 20:15:00 UTC
Last modified on: 11/02/2022 16:11:00 UTC