Re: CVE Request: gif2png: command-line buffer overflow problem

["Benji" <me () b3nji com>]

"File name too long"

------Original Message------
From: Dan Rosenberg
To: oss-security () lists openwall com
ReplyTo: oss-security () lists openwall com
Subject: Re: [oss-security] CVE Request: gif2png: command-line buffer overflow problem
Sent: Nov 22, 2010 00:19

How could this possibly be exploited?  If you can trick a user into
running gif2png [exploit payload], then that user has already lost.

See also:
make `perl -e 'print "A"x10000'`

-Dan

On Sun, Nov 21, 2010 at 6:45 PM, Kurt Seifried <kurt () seifried org> wrote:
> This is from 2009 but doesn't appear to have a CVE (no "gif2png" in
> the CVE database).
>
> Sources:
> https://bugzilla.redhat.com/show_bug.cgi?id=547515
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550978
> http://lists.grok.org.uk/pipermail/full-disclosure/2009-December/072009.html
>
> Description:
> A buffer overflow in gif2png 2.5.3 and earlier allows an attacker to
> execute arbitrary code via a long command line argument passed to the
> gif2png binary.
>
> It was first claimed that it was fixed in 2.5.2 but it is reported
> that it isn't fixed, I tested 2.5.3 and it still seg faults the same
> way as 2.5.2 so it would appear it was never fixed, as the software
> was last updated in 2005 I guess this one never gets fixed.
>
> --
> Kurt Seifried
> kurt () seifried org
> tel: 1-703-879-3176


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