When it comes to fuzzing, Mozilla has plenty of cred, and has been doing so for some time, and yet, its prized Network Security Services (NSS) library was busted by Google Project Zero’s Tavis Ormandy quite easily. In a blog post well worth your time, entitled This shouldn’t have happened, Ormandy found that if NSS was made to create an ASN.1 signature bigger than the maximum 16384 bits it expected, overwriting of memory would occur.

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