linux-kernel - Re: [ANNOUNCE] Git v2.12.3 and others

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Message-ID: <20170510003823.GT28740@aiede.svl.corp.google.com>
Date:   Tue, 9 May 2017 17:38:23 -0700
From:   Jonathan Nieder <jrnieder@...il.com>
To:     Junio C Hamano <gitster@...ox.com>
Cc:     git@...r.kernel.org, Linux Kernel <linux-kernel@...r.kernel.org>,
        Timo Schmid <tschmid@...w.de>
Subject: Re: [ANNOUNCE] Git v2.12.3 and others

Junio C Hamano wrote:

> Maintenance releases Git v2.4.12, v2.5.6, v2.6.7, v2.7.5, v2.8.5,
> v2.9.4, v2.10.3, v2.11.2, and v2.12.3 have been tagged and are now
> available at the usual places.
>
> These are primarily to fix a recently disclosed problem with "git
> shell", which may allow a user who comes over SSH to run an
> interactive pager by causing it to spawn "git upload-pack --help"
> (CVE-2017-8386).  Some (like v2.12.3) have other fixes that have
> been accumulating included as well.
>
> "git-shell" is a restricted login shell that can be used on a server
> to prevent SSH clients from running any programs except those needed
> for git fetches and pushes. If you are not running a server, or if
> your server has not been explicitly configured to use git-shell as a
> login shell, you are not affected.  Also note that sites running "git
> shell" behind gitolite are NOT vulnerable.

Thanks.  Credit for discovering this bug goes to Timo Schmid, ERNW GmbH.
They will probably have a blog post soon with more details.

1.6.1 is the earliest git version affected (so this goes back pretty
far).

> The tarballs are found at:
>
>     https://www.kernel.org/pub/software/scm/git/
>
> The following public repositories all have a copy of these tags:
>
>   url = https://kernel.googlesource.com/pub/scm/git/git
>   url = git://repo.or.cz/alt-git.git
>   url = git://git.sourceforge.jp/gitroot/git-core/git.git
>   url = git://git-core.git.sourceforge.net/gitroot/git-core/git-core
>   url = https://github.com/gitster/git

Sincerely,
Jonathan