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[ANNOUNCE] Git v2.12.3 and others

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  [ANNOUNCE] Git v2.12.3 and others Junio C Hamano <gitster@pobox.com> - 2017-05-10 02:10 +0200
    Re: [ANNOUNCE] Git v2.12.3 and others Jonathan Nieder <jrnieder@gmail.com> - 2017-05-10 02:40 +0200

#1638460 — [ANNOUNCE] Git v2.12.3 and others

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.

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

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#1638469

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

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