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>> Apple iPhone Code Execution and Security Bypass Vulnerabilities
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Multiple vulnerabilities have been identified in Apple iPhone, which could be exploited by attackers to bypass security restrictions, poison DNS cache, cause a denial of service or compromise a vulnerable system.
The first issue is caused by an error in the Application Sandbox that does not properly enforce access restrictions between third-party applications, which may allow a third-party application to read files in another third-party application's sandbox and lead to the disclosure of sensitive information.
The second vulnerability is caused by errors in FreeType could be exploited to execute arbitrary code. For additional information, see : VUPEN/ADV-2008-1794
The third issue is caused by an error in mDNSResponder, which may allow DNS cache poisoning attacks.
The fourth weakness is caused due to predictable TCP initial sequence numbers being generated, which could allow a remote attacker to create a spoofed TCP connection or insert data into an existing TCP connection.
The fifth vulnerability is caused by an implementation error in the Passcode Lock feature when handling emergency calls, which could allow users with physical access to an iPhone to launch an application without the passcode by double clicking the home button in emergency call.
The sixth issue is caused by a use-after-free error in WebKit when handling CSS import statements, which could allow malicious websites to crash an affected application or execute arbitrary code.
Credits
Vulnerabilities reported by Nicolas Seriot (Sen:te), Bryce Cogswell, Dan Kaminsky (IOActive), Matthew Yohe (University of Iowa / Department of Electrical and Computer Engineering) and the vendor.
ChangeLog
2008-09-15 : Initial release
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