CVE-2017-2388

MEDIUM

macOS < 10.12.4 - Denial of Service via IOFireWireFamily NULL Pointer Dereference

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2017-2388. PoCs published by Brandon Azad, bazad.

AI-analyzed exploit summary This exploit triggers a NULL pointer dereference in IOFireWireUserClient::setAsyncRef_IsochChannelForceStop by creating an isochronous channel and then forcing it to stop. The vulnerability leads to a kernel panic, resulting in a denial of service (DoS).

Description

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "IOFireWireFamily" component. It allows attackers to cause a denial of service (NULL pointer dereference) via a crafted app.

Exploits (2)

exploitdb WORKING POC
by Brandon Azad · cdosmacos
https://www.exploit-db.com/exploits/44236

This exploit triggers a NULL pointer dereference in IOFireWireUserClient::setAsyncRef_IsochChannelForceStop by creating an isochronous channel and then forcing it to stop. The vulnerability leads to a kernel panic, resulting in a denial of service (DoS).

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Apple IOFireWireFamily (macOS)
No auth needed
Prerequisites: Access to a vulnerable macOS system with IOFireWireFamily loaded
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 3 stars
by bazad · poc
https://github.com/bazad/IOFireWireFamily-null-deref

This is a working proof-of-concept exploit for CVE-2017-2388, a NULL pointer dereference in IOFireWireUserClient on macOS. It triggers a denial of service by calling setAsyncRef_IsochChannelForceStop with a NULL handle.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: macOS Sierra versions prior to 10.12.4
No auth needed
Prerequisites: FireWire port on the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97140
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207615
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038138

Scores

CVSS v3 5.5
EPSS 0.0360
EPSS Percentile 88.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (1)
apple/mac_os_x < 10.12.3
Published Apr 02, 2017
Tracked Since Feb 18, 2026