CVE-2010-2973

Vulnerability

An integer overflow vulnerability exists in the IOSurface subsystem of Apple iOS. Affected versions include iOS before 4.0.2 on iPhone and iPod touch, and iOS before 3.2.2 on iPad [1][2]. The overflow occurs when handling IOSurface properties, leading to memory corruption.

Exploitation

The vulnerability can be exploited by a local user or via a malicious PDF that triggers the overflow. The JailbreakMe exploit demonstrated this by using a crafted PDF that, when viewed, triggers the IOSurface integer overflow to gain elevated privileges. No authentication is required beyond user interaction [3].

Impact

Successful exploitation allows an attacker to execute arbitrary code with root privileges, resulting in full device compromise. The attacker gains the ability to install unauthorized applications, modify system settings, and access sensitive data.

Mitigation

Apple released iOS 4.0.2 for iPhone and iPod touch and iOS 3.2.2 for iPad to fix this issue [1][2]. Users should update their devices to these versions or later. The vulnerability was publicly exploited in JailbreakMe, highlighting the need for prompt patching.