PNG vurnability

[WiNK / Bor <wi...@connectedserver.com>]

Hi Guys,

Not sure if this is the right list to ask it, but lots of people with 
knowledge about it,

how serious is the PNG file treat, i noticed it is default denied by 
mailscanner. However i got some designers behind my mailscanner, which 
also want receive png files? So i know i can whitelist these persons by 
address and or domain, but i want to know about the severity of 
potential treat caused by png files.

Kind Regards
Rob

Re: PNG vurnability

[mouss <mo...@netoyen.net>]

WiNK / Bor wrote:
> Hi Guys,
>
> Not sure if this is the right list to ask it, but lots of people with 
> knowledge about it,
>
> how serious is the PNG file treat, i noticed it is default denied by 
> mailscanner. However i got some designers behind my mailscanner, which 
> also want receive png files? So i know i can whitelist these persons 
> by address and or domain, but i want to know about the severity of 
> potential treat caused by png files.


http://www.sans.org/newsletters/risk/display.php?v=4&i=6#widely5
http://www.securityfocus.com/bid/18913
http://www.securityfocus.com/bid/21920
http://scary.beasts.org/security/CESA-2004-001.txt
http://www.microsoft.com/technet/security/bulletin/ms05-009.mspx
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57683-1
...

RE: PNG vurnability

["Martin.Hepworth" <ma...@solidstatelogic.com>]

Rob

Might be worthwhile moving this to the MailScanner list as it's nothing
to do with SA per sa.

But what version of MailScanner are you running, as I can't see anything
that would block png files by default.

--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300

> -----Original Message-----
> From: WiNK / Bor [mailto:wink@connectedserver.com]
> Sent: 23 April 2007 10:12
> To: users@spamassassin.apache.org
> Subject: PNG vurnability
>
> Hi Guys,
>
> Not sure if this is the right list to ask it, but lots of people with
> knowledge about it,
>
> how serious is the PNG file treat, i noticed it is default denied by
> mailscanner. However i got some designers behind my mailscanner, which
> also want receive png files? So i know i can whitelist these persons
by
> address and or domain, but i want to know about the severity of
> potential treat caused by png files.
>
> Kind Regards
> Rob




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