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How CVE-2025-31219 Works
CVE-2025-31219 is a critical memory corruption vulnerability in Apple’s kernel affecting multiple OS versions, including iOS, macOS, and watchOS. The flaw stems from improper memory handling in the kernel, allowing an attacker to trigger unexpected system termination or corrupt kernel memory. This occurs when maliciously crafted input bypasses memory safety checks, leading to arbitrary code execution with kernel privileges. The vulnerability is exploitable via local or remote vectors, depending on the attack surface. Apple addressed it by implementing enhanced memory validation in the affected kernel subsystems.
DailyCVE Form
Platform: Apple OS (iOS/macOS/watchOS)
Version: Multiple (see fixed versions)
Vulnerability: Kernel Memory Corruption
Severity: Critical
Date: 05/27/2025
Prediction: Patch expected by 06/10/2025
What Undercode Say:
Exploitation:
- Crafted syscalls or malicious apps can trigger memory corruption.
- Heap spraying techniques may stabilize exploitation.
- Kernel read/write primitives enable privilege escalation.
Protection:
- Apply Apple’s security updates immediately.
- Disable unnecessary kernel extensions.
- Enable kernel memory protections (e.g., KASLR, PAC).
Analytics:
- Exploitability: High (PoC likely within 30 days).
- Attack Surface: Broad (local/remote vectors possible).
Commands & Code:
1. Check kernel version:
uname -a
2. Verify patch installation:
system_profiler SPSoftwareDataType | grep "System Version"
3. Mitigation (temporary):
sudo nvram boot-args="arm64e_panic=1" Enforce PAC checks
Exploit Snippet (Hypothetical):
void trigger_overflow(void target_buffer) {
// Crafted payload to corrupt kernel memory
memcpy(target_buffer, malicious_data, overflow_size);
}
Detection:
- Monitor kernel panic logs:
log show --predicate 'eventMessage contains "panic"'
- Use Endpoint Detection for unusual syscall patterns.
Patch Verification:
- Confirm kernel checksum post-update:
kmutil showloaded --list-only | grep "com.apple.kernel"
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
