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Package: pbuilder
Version: 0.206
Tags: patch
Followup-For: Bug #579028
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Dear Maintainer,
The attached patch changes the defaults to always enforce signed
repositories and aborts if an untrusted/manipulated package is
installed. It adds the new option --keyring (APTKEYRINGS) to add
additional keyrings, which are then used to verify the (local)
signed repositories. This way no untrusted packages can be
installed.
To still allow untrusted/unsigned repositories - they are a very
bad idea and allow remote attackers performing a MITM to take
over the system, including all built packages - the new option
- --allow-untrusted (ALLOWUNTRUSTED) was added.
I tested it with the official Debian repository, signed and
unsigned local repositories and it works fine for me. But I'm
only a "normal" pbuilder user, so I might have missed something.
Please test the patch.
I haven't tested it with cdebootstrap, but it should work as
well.
The old PBUILDERSATISFYDEPENDSOPT --check-key option was
deprecated and is no longer used (it emits a warning now) as
validation is the default now.
The patch also contains documentation updates for the new
options/variables and updates for the NEWS file describing the
necessary changes to continue using untrusted packages (but
please don't do that - especially as a Debian developer).
Please have a look and include the patch as soon as possible to
fix this security issue.
Regards,
Simon
- -- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages pbuilder depends on:
ii cdebootstrap 0.5.8+b1
ii coreutils 8.13-3
ii debconf [debconf-2.0] 1.5.41
ii debianutils 4.2.1
ii debootstrap 1.0.38
ii dpkg-dev 1.16.1.2
ii wget 1.13.4-2
Versions of packages pbuilder recommends:
pn devscripts 2.11.4
pn fakeroot 1.18.2-1
pn sudo <none>
Versions of packages pbuilder suggests:
pn cowdancer <none>
pn gdebi-core <none>
pn pbuilder-uml <none>
- -- debconf information excluded
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=6EPj
-----END PGP SIGNATURE-----
>From cadc48fb599d436577a6efedc7f25e175652a3a1 Mon Sep 17 00:00:00 2001
Message-Id: <cadc48fb599d436577a6efedc7f25e175652a3a1.1330997290.git.simon@ruderich.org>
From: Simon Ruderich <simon@ruderich.org>
Date: Tue, 6 Mar 2012 02:00:48 +0100
Subject: [PATCH] Enforce valid signed repositories by default.
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