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NSKeyedUnarchiver SGBigUTF8String Decoding Information Leak
Posted Aug 13, 2019
Authored by Google Security Research, natashenka

NSKeyedUnarchiver suffers from an information leak when decoding the SGBigUTF8String class using [SGBigUTF8String initWithCoder:]. This class initializes the string using [SGBigUTF8String initWithUTF8DataNullTerminated:] even though there is no guarantee the bytes provided to the decoder are null terminated. It should use [SGBigUTF8String initWithUTF8Data:] instead.

tags | exploit
advisories | CVE-2019-8663
SHA-256 | 350595d4b62128692b25160fd0dc54b6e14a6ff528c3e77b5bce0cd7797ace73

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