Apple releases iOS 4.3.4 and 4.2.9 updates for iOS devices. The updates fix PDF-related vulnerabilities in MobileSafari. The fixes fix three vulnerabilities, including a PDF vulnerability in Apple’s CoreGraphics framework. The latest iOS jailbreak method was being used by jailbreakme.com to fix the problem. Users can download the updates by plugging in their respective iOS devices and checking for updates in iTunes. You can also check out Apple’s knowledge base documents on the updates linked above.”]
Source: https://www.csoonline.com/article/2129054/apple-releases-ios-updates-to-fix-pdf-vulnerabilities.html