An issue was discovered in certain Apple products. macOS before 10.12.2 is affected. The issue involves the "Directory Services" component. It allows local users to gain privileges or cause a denial of service (use-after-free) via unspecified vectors.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://www.exploit-db.com/exploits/40954/ | exploit |
| http://www.securityfocus.com/bid/94903 | third party advisory vdb entry |
| http://www.securitytracker.com/id/1037469 | vdb entry |
| https://support.apple.com/HT207423 | vendor advisory |