Re: [exim] [OT] Emergency!!! Is anyone else getting this vir…

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著者: Wakko Warner
日付:  
To: Chris Meadors
CC: exim-users
題目: Re: [exim] [OT] Emergency!!! Is anyone else getting this virus/worm?
> And because these zip bombs have existed since pre-Internet days, every
> scanner I have ever seen has the ability to look at the compress vs.
> uncompressed size of the file inside an archive and refuse to unpack
> something that will blow up many times its compressed size.
>
> Although there was recently a bug found that if the header of a zip file
> was altered to report the size of a file to be 0 bytes many scanners
> would skip over the file assuming it to be safe. I wonder if the same
> trick could be played to make the compression ratio look lower than it
> actually is...


Do you have any examples of a file like this?

--
Lab tests show that use of micro$oft causes cancer in lab animals