CVE-2015-5799

Vulnerability

CVE-2015-5799 is a memory corruption vulnerability in WebKit, the rendering engine used by Apple iOS and iTunes. The flaw exists in the processing of maliciously crafted web content, leading to memory corruption. Affected versions include Apple iOS prior to 9 and iTunes prior to 12.3 [1][3]. The vulnerability is distinct from other WebKit CVEs addressed in the same advisories.

Exploitation

An attacker can exploit this vulnerability by hosting a crafted website and enticing a user to visit it. No authentication or special privileges are required; the attack is remote and relies on user interaction (visiting the malicious site). The exact sequence of steps involves the attacker serving a specially crafted web page that triggers the memory corruption when processed by WebKit.

Impact

Successful exploitation allows a remote attacker to execute arbitrary code on the affected device or cause a denial of service (application crash). The attacker gains the ability to run code at the privilege level of the WebKit process, potentially leading to full system compromise on iOS or arbitrary code execution within the iTunes environment.

Mitigation

Apple addressed this vulnerability in iOS 9 (released September 16, 2015) and iTunes 12.3 (released September 16, 2015) [1][3]. Users should update to these versions or later. No workarounds are documented; the only mitigation is applying the available patches.