Date: Mon, 29 Sep 2014 20:39:07 +0100 From: John Haxby <john.haxby@...cle.com> To: oss-security@...ts.openwall.com Cc: ekobrin <ekobrin@...mai.com>, "chet.ramey" <chet.ramey@...e.edu>, solar <solar@...nwall.com>, lcamtuf <lcamtuf@...edump.cx>, fweimer <fweimer@...hat.com> Subject: Re: Healing the bash fork On 29 Sep 2014, at 19:50, David A. Wheeler <dwheeler@...eeler.com> wrote: > That said, a lot of people are looking to find other attack paths. Shellshock has pointed out > a kind of attack path that most people hadn't examined before. > I'd still like to see Christos Zoulas's approach included eventually, since that's an even stronger > countermeasure. After all, if function imports only happen on request, then > non-requesters will have no problem. But I also understand that Zoulas's approach > is backwards-incompatible, and thus the bash folks are hesitant to apply it. > If that can't be added now, perhaps it could be added in a next release of bash? Normally I’d be all for maintaining backwards compatibility: we spend a lot of time fixing bugs in a way that doesn’t break anything. On this occasion, though, I think Christos Zoulos’s approach is both correct and needed. jch
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