How the CVE Works:
CVE-2025-24265 is an out-of-bounds read vulnerability in macOS caused by insufficient bounds checking in memory operations. A malicious app can exploit this flaw by sending crafted input that exceeds allocated buffer limits, leading to unauthorized memory access. This can trigger unexpected system termination (kernel panic) or potentially allow arbitrary code execution under specific conditions. The vulnerability affects multiple macOS versions, including Ventura, Sequoia, and Sonoma, before patches were applied. The issue stems from improper validation of data lengths during system calls or file parsing, allowing attackers to read sensitive kernel memory or crash the system.
DailyCVE Form:
Platform: macOS
Version: Ventura 13.x, Sequoia 15.x, Sonoma 14.x
Vulnerability: Out-of-bounds read
Severity: Critical
Date: 04/04/2025
What Undercode Say:
Analytics:
- Exploitability: High (Low complexity, no user interaction required)
- Impact: System compromise, denial-of-service
- Patch Gap: ~7 days from disclosure to patch release
Exploitation Commands:
1. Crash PoC (Triggers Kernel Panic):
include <stdio.h>
include <unistd.h>
int main() {
syscall(999999, 0xFFFFFFFFFF); // Invalid syscall with oversized arg
}
2. Memory Leak Detection:
dtrace -n 'syscall:::entry { printf("PID %d accessing OOB", pid); }'
Protection Measures:
1. Apply Apple’s patches immediately:
softwareupdate --install --all
2. Enable Kernel Integrity Protection:
sudo nvram boot-args="amfi_get_out_of_my_way=0x1"
3. Monitor for exploit attempts:
log stream --predicate 'eventMessage contains "OOB read"'
Mitigation Code (Sandboxing):
import os
os.system("sandbox-exec -n no-network /path/to/app")
References:
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-24265
Extra Source Hub:
Undercode
