OSEC

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Subject: MH also vulnerable to remote attack (was Re: nmh security update)
From: Dan Harkless (dan-bugtraqDILVISH.SPEED.NET)
Date: Thu Mar 02 2000 - 18:37:37 CST

Ruud de Rooij <ruudRUUD.ORG> writes:
> Versions prior to 1.0.3 of the nmh package contained a vulnerability
> where incoming mail messages with carefully designed MIME headers could
> cause nmh's mhshow command to execute arbitrary shell code.
>
> This bug has been fixed in nmh 1.0.3 and we encourage you to upgrade
> immediately. The fixed package is available at
>
> ftp://ftp.mhost.com/pub/nmh/nmh-1.0.3.tar.gz
>
> The MD5sum of nmh-1.0.3.tar.gz is 02519bf8f7ff8590ecfbee9f9500ea07.

Please note that the MIME-handling code with the security hole dates back to
nmh's ancestor MH, so MH users (at least those using latter-day versions
with MIME capability) are also strongly encouraged to upgrade to nmh 1.0.3.

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