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Date: Fri, 25 Mar 2022 08:59:35 -0500
From: John Helmert III <>
Subject: Re: zlib memory corruption on deflate (i.e. compress)

On Wed, Mar 23, 2022 at 08:49:49PM -0700, Tavis Ormandy wrote:
> Greetings list, I was recently trying to track down a reproducible crash
> in a compressor. Believe it or not, it really was a bug in
> zlib-1.2.11 when compressing (not decompressing!) certain inputs.
> I reported it upstream, but it turns out the issue has been public since
> 2018, but the patch never made it into a release. As far as I know,
> nobody ever assigned it a CVE.

CVE-2018-25032 appears to have been assigned for it now.

> As far as I can tell, no distros have picked this up.
> Tavis.
> -- 
>  _o)            $ lynx
>  /\\  _o)  _o)  $ finger
> _\_V _( ) _( )  @taviso

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