Well, there is a difference. First, that certain argument (malformed certificate) was not randomly encountered, it was specifically constructed to trigger the vulnerability (Was reverse-engineering involved? I don't know). Second, this bug report not only discloses the fact that the vulnerability exists, but also provides a working example for any script-kiddie to use as an exploit. Third, the bug was not privately disclosed to software vendor, but was released to the public.
From https://security.stackexchange.com/questions/22973/if-i-find... it seems that would be criminal in UK or Germany, no idea what could've happen in US. On one hand, you have First Amendment, on other hand, there is an EULA.