Grand Central Dispatch in Apple iOS before 9.1, OS X before 10.11.1, and watchOS before 2.0.1 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted package that is mishandled during dispatch calls.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html | vendor advisory |
| http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.html | vendor advisory |
| https://support.apple.com/HT205375 | vendor advisory |
| http://lists.apple.com/archives/security-announce/2015/Oct/msg00003.html | vendor advisory |
| https://support.apple.com/HT205370 | vendor advisory |
| https://support.apple.com/HT205378 | vendor advisory |
| http://www.securitytracker.com/id/1033929 | vdb entry |