oss-security - Re: CVE-2018-6789 Exim 4.90 and earlier: buffer overflow

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Message-ID: <20180208165700.i7j2n7avv6bebqo2@jumper.schlittermann.de>
Date: Thu, 8 Feb 2018 17:57:00 +0100
From: Heiko Schlittermann <hs@...littermann.de>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2018-6789 Exim 4.90 and earlier: buffer overflow

Heiko Schlittermann <hs@...littermann.de> (Mi 07 Feb 2018 11:39:43 CET):
> CVE-2018-6789 Exim 4.90 and earlier
> ===================================
> 
> There is a buffer overflow in an utility function, if some pre-conditions
> are met.  Using a handcrafted message, remote code execution seems to be
> possible.
> 
> Next steps:
> 
> * t0:     Distros will get access to our "security" non-public git repo
>           (based on the SSH keys known to us)
> * t0 +7d: Patch will be published on the official public git repo
> 
> t0 will be around 2018-02-08.

t0 is now. Distro maintainers please use the following repo URLs:

The full git repo:

    ssh://git@...m.org/exim.git     
    tag: exim-4_90_1

The tarballs git repo:

    ssh://git@...m.org/exim-packages.git
    tag: exim-4_90_1

The tags are signed with my key¹, as are the tarballs and my own
commits.

¹) If you get a warning about my key being expired, please refresh it
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    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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