ziVA: Zimperium’s iOS Video Audio Kernel Exploit
A brief description of one of the vulnerabilities, CVE-2017-6979:
The function IOSurfaceRoot::createSurface is responsible for the creation of the IOSurface object. It receives an OSDictionary, which it forwards to the function IOSurface::init.
IOSurface::init parses the properties and in case one of these are invalid (e.g, a width that exceeds 32 bits), returns 0, and the creation of the IOSurface is halted.
The IOSurfaceRoot object must hold a lock while calling IOSurface::init because IOSurface::init adds the IOSurface object to the IOSurfaceRoot’s list of surfaces.
[source: https://blog.zimperium.com/ziva-video-audio-ios-kernel-exploit/]
Congratulations @pikysek! You have received a personal award!
Click on the badge to view your Board of Honor.
Do not miss the last post from @steemitboard:
SteemitBoard World Cup Contest - Sweden vs Switzerland
Participate in the SteemitBoard World Cup Contest!
Collect World Cup badges and win free SBD
Support the Gold Sponsors of the contest: @good-karma and @lukestokes
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit
Congratulations @pikysek! You received a personal award!
You can view your badges on your Steem Board and compare to others on the Steem Ranking
Vote for @Steemitboard as a witness to get one more award and increased upvotes!
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit