oss-security - Re: ssmtp =2.62 unitialized memory disclosure

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Date: Tue, 9 Sep 2008 10:29:38 -0400 (EDT)
From: "Steven M. Christey" <coley@...us.mitre.org>
To: oss-security@...ts.openwall.com
Subject: Re: ssmtp =2.62 unitialized memory disclosure

On Tue, 9 Sep 2008, Robert Buchholz wrote:

> Maurice van der Pot of Gentoo reported a bug in ssmtp 2.62:
> The from_format() function in ssmtp.c will call strdup() on an
> unitialized memory if the user's gecos is unset and "FromLineOverride"
> is disabled in the configuration. This might disclose memory contents
> by sending them off in the the "From:" field of an email or cause a
> (client) crash.

Wow, this is definitely an edge case.  Technically the memory disclosure
is a security issue, at least for the couple emails that get sent before
the user gives up in frustration.

So, use CVE-2008-3962 (to be filled in later).

- Steve

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