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Difference between revisions of "Overlapping Segment Attack"
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== References == |
== References == |
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| − | * [http://blog. |
+ | * [http://blog.accuvant.com/bthomasaccuvant/evasi0n-jailbreaks-userland-component/ Accuvant Labs analysis of evasi0n] |
* [http://support.apple.com/kb/HT5704 Apple's iOS 6.1.3 security fixes] |
* [http://support.apple.com/kb/HT5704 Apple's iOS 6.1.3 security fixes] |
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* [http://support.apple.com/kb/HT5702 Apple's iOS 5.2.1 (Apple TV) security fixes] |
* [http://support.apple.com/kb/HT5702 Apple's iOS 5.2.1 (Apple TV) security fixes] |
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Latest revision as of 22:34, 30 December 2013
This is CVE-2013-0977. This vulnerability was first mentioned by i0n1c[1][2][3]: "So iOS 6.1.3 beta 2 also fixes the Overlapping Segment Attack against dyld used in evasi0n." and "The Accuvant Labs analysis is incomplete and does not mention this. They do not realize / mention that it is not possible to have a codeless dylib without exploiting dyld."
So a deeper investigation is necessary here.
Apple's description in the iOS 6.1.3 security fixes:
dyld
Impact: A local user may be able to execute unsigned code
Description: A state management issue existed in the handling of Mach-O executable files with overlapping segments. This issue was addressed by refusing to load an executable with overlapping segments.
