CVE-2016-1819

HIGH

Apple tvOS < 9.2.1 - Use-After-Free in IOAccelContext2::clientMemoryForType

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2016-1819. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a use-after-free vulnerability in the OS X kernel due to improper locking in IOAcceleratorFamily2. It races two threads to trigger the vulnerability by mapping and unmapping memory in the IntelAccelerator user client.

Description

Use-after-free vulnerability in the IOAccelContext2::clientMemoryForType method in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app, a different vulnerability than CVE-2016-1817 and CVE-2016-1818.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · cdososx
https://www.exploit-db.com/exploits/39928

This exploit demonstrates a use-after-free vulnerability in the OS X kernel due to improper locking in IOAcceleratorFamily2. It races two threads to trigger the vulnerability by mapping and unmapping memory in the IntelAccelerator user client.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Racy
Target: Apple OS X 10.11.4 (IOAcceleratorFamily2)
No auth needed
Prerequisites: OS X 10.11.4 with IntelAccelerator driver
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (13)

Core 13
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206567
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/39928/
Mailing List, Vendor Advisory vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206566
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/90694
Mailing List, Vendor Advisory vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2016/May/msg00003.html
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206564
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1035890
Mailing List, Vendor Advisory vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2016/May/msg00002.html
Exploit, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/project-zero/issues/detail?id=772
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206568
Mailing List, Vendor Advisory vendor-advisory x_refsource_apple
http://lists.apple.com/archives/security-announce/2016/May/msg00001.html

Scores

CVSS v3 7.8
EPSS 0.0557
EPSS Percentile 90.5%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (4)
apple/iphone_os < 9.3.2
apple/mac_os_x < 10.11.5
apple/tvos < 9.2.1
apple/watchos < 2.2.1
Published May 20, 2016
Tracked Since Feb 18, 2026