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Message-ID: <20080407190036.GA2514@openwall.com>
Date: Mon, 7 Apr 2008 23:00:36 +0400
From: Solar Designer <solar@...nwall.com>
To: oss-security@...ts.openwall.com
Subject: Re: gcc 4.2 optimizations and integer overflow checks
On Mon, Apr 07, 2008 at 06:39:33PM +0200, Nico Golde wrote:
> * Steven M. Christey <coley@...us.mitre.org> [2008-04-07 18:24]:
> > While an unusual bug, we decided to assign a CVE for it.
...
> > URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1685
> > Reference: CERT-VN:VU#162289
> > Reference: URL:http://www.kb.cert.org/vuls/id/162289
> [...]
> Please add http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763
> to the references.
FWIW, there are also actual gcc bugs that cause miscompiles - and they
may potentially result in security vulnerabilities - yet I am not sure
if "proactively" treating the gcc bugs themselves as security issues is
appropriate. This is interesting - here we have a gcc non-bug that
deserves a CERT Vulnerability Note and a CVE number (which I agree
with), yet actual bugs might not deserve such treatment.
Here's an example of an actual bug -
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26587 - this one caused my
Blowfish implementation to be miscompiled, possibly making the cipher
weaker (in case the misbehavior went unnoticed). By the way, I was
surprised by how quickly this one was confirmed (16 minutes) and fixed
(less than a day).
Alexander
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