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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2452
                            git security update
                             29 September 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           git
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Debian GNU/Linux 9
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14867  

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-3984

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running git check for an updated version of the software for their 
         operating system.

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Debian Security Advisory DSA-3984-1                   security@debian.org
https://www.debian.org/security/                           Florian Weimer
September 26, 2017                    https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : git
Debian Bug     : 876854

joernchen discovered that the git-cvsserver subcommand of Git, a
distributed version control system, suffers from a shell command
injection vulnerability due to unsafe use of the Perl backtick
operator.  The git-cvsserver subcommand is reachable from the
git-shell subcommand even if CVS support has not been configured
(however, the git-cvs package needs to be installed).

In addition to fixing the actual bug, this update removes the
cvsserver subcommand from git-shell by default.  Refer to the updated
documentation for instructions how to reenable in case this CVS
functionality is still needed.

For the oldstable distribution (jessie), this problem has been fixed
in version 1:2.1.4-2.1+deb8u5.

For the stable distribution (stretch), this problem has been fixed in
version 1:2.11.0-3+deb9u2.

For the unstable distribution (sid), this problem has been fixed in
version 1:2.14.2-1.

We recommend that you upgrade your git packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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===========================================================================
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