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.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Apple Mac OSX Kernel - Use-After-Free Due to Bad Locking in IOAcceleratorFamily2 EDB-39928 · dos · Jun 10, 2016 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://support.apple.com/HT206567
- 39928 exploit
- APPLE-SA-2016-05-16-4 vendor-advisory
- https://support.apple.com/HT206566
- 90694 vdb-entry
- APPLE-SA-2016-05-16-3 vendor-advisory
- https://support.apple.com/HT206564
- http://packetstormsecurity.com/files/137396/OS-X-Kernel-Use-After-Free-From-IOAcceleratorFamily2-Bad-Locking.html
- 1035890 vdb-entry
- APPLE-SA-2016-05-16-2 vendor-advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=772
- https://support.apple.com/HT206568
- APPLE-SA-2016-05-16-1 vendor-advisory