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From: support at mmicman.com (Edward W. Ray) Subject: openssh remote exploit Either your just an ass or an Theo hater or both. Either way, your comments are without merit. If one looks at the record of OpenBSD and OpenSSH it is certainly way better than the other software out there. Regards, Edward W. Ray SANS GCIA, GCIH -----Original Message----- From: full-disclosure-admin@...ts.netsys.com [mailto:full-disclosure-admin@...ts.netsys.com] On Behalf Of Darren Reed Sent: Tuesday, September 16, 2003 9:41 AM To: auto64746@...hmail.com Cc: full-disclosure@...ts.netsys.com Subject: Re: [Full-Disclosure] openssh remote exploit In some mail from auto64746@...hmail.com, sie said: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Look closer. > > buffer->alloc += len + 32768; > if (buffer->alloc > 0xa00000) > fatal("buffer_append_space: alloc %u not supported",buffer->alloc); > > buffer->buf = xrealloc(buffer->buf, buffer->alloc); > goto restart; > > i do not have belief of giving the codepath but we must take > buffer_free and make overflow by '\0'. > this is not exploit of 2.4.x as malloc never return null. unless > malloc w00d00. Ah, I see what you mean. I was looking at the code assuming all the functions called worked perfectly and that fatal() did nothing fancy. In reading it through, I took an attitude of not looking at any other files or functions to see what they did as the pointer didn't mention those and who knows where it might have ended or how much time it would have taken ? Remember, this is OpenSSH - the world's most perfect software. And I'm sure this will manage to be another remote exploit that the OpenBSD team will find a way to not count on their front page. Cheers, Darren _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
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