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Message-ID: <20210511222021.GA23723@localhost.localdomain>
Date: Tue, 11 May 2021 22:22:19 +0000
From: Qualys Security Advisory <qsa@...lys.com>
To: null p0int3r <nullp0int3rx@...il.com>
CC: "oss-security@...ts.openwall.com" <oss-security@...ts.openwall.com>
Subject: Re: [CVE-2020-28018] Use-After-Free on Exim Question
Hi,
On Tue, May 11, 2021 at 11:18:12PM +0200, null p0int3r wrote:
> In the advisory it is mentioned the use of the name=value pair, but reading
> the code I see just string based functions used for allocations.
One of the name=value parameters for MAIL FROM is special, because it
can allocate arbitrary (binary) characters (hint: we also used it to
exploit another vulnerability in the advisory)!
With best regards,
--
the Qualys Security Advisory team
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