Description
The (1) setreuid and (2) setregid system-call implementations in the kernel in Apple iOS before 8.3, Apple OS X before 10.10.3, and Apple TV before 7.2 do not properly perform privilege drops, which makes it easier for attackers to execute code with unintended user or group privileges via a crafted app.
References
- https://support.apple.com/HT204659
- https://support.apple.com/kb/HT204870
- APPLE-SA-2015-04-08-3 vendor-advisory
- 1032048 vdb-entry
- APPLE-SA-2015-04-08-2 vendor-advisory
- https://support.apple.com/HT204662
- APPLE-SA-2015-04-08-4 vendor-advisory
- https://support.apple.com/HT204661