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Re: [Duplicity-talk] Stream Vulnerability

From: Martin Pool
Subject: Re: [Duplicity-talk] Stream Vulnerability
Date: Sun, 31 Aug 2014 14:10:45 +0000

It will be vulnerable if it reads from gpg through a pipe and processes data as it goes. It will not be vulnerable if it lets gpg complete writing its output into a temp file or buffer, before parsing any of it.

On Sun Aug 31 2014 at 4:56:55 AM <address@hidden> wrote:
On 29.08.2014 23:30, Jonathan Brown wrote:
> Could anyone tell me if Duplicity is vulnerable to stream encryption vulnerabilities utilizing GPG? This blog post talks about issues affecting encryption that uses GPG and I would like to know if there is any reason to be concerned. Thanks
> https://www.imperialviolet.org/2014/06/27/streamingencryption.html <mailto:address@hiddenorg>

it's unclear to me how an attacker might use this vulnerability in case of duplicity. can you give an example?

generally duplicity has all flaws of gpg. volumes/files are created by piping them into a gpg process and using the resulting encrypted files.


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