ESB-2017.2005 - [Ubuntu] git: Execute arbitrary code/commands - Remote with user interaction 2017-08-11

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

                               ESB-2017.2005
                             Git vulnerability
                              11 August 2017

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

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

Product:           git
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000117  

Reference:         ESB-2017.1987

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3387-1

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Ubuntu Security Notice USN-3387-1
August 11, 2017

git vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 17.04
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Git could be made run programs as your login if it opened a specially
crafted git repository.

Software Description:
- - git: fast, scalable, distributed revision control system

Details:

Brian Neel, Joern Schneeweisz, and Jeff King discovered that Git did
not properly handle host names in 'ssh://' URLs. A remote attacker
could use this to construct a git repository that when accessed could
run arbitrary code with the privileges of the user.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.04:
  git                             1:2.11.0-2ubuntu0.2

Ubuntu 16.04 LTS:
  git                             1:2.7.4-0ubuntu1.2

Ubuntu 14.04 LTS:
  git                             1:1.9.1-1ubuntu0.6

In general, a standard system update will make all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3387-1
  CVE-2017-1000117

Package Information:
  https://launchpad.net/ubuntu/+source/git/1:2.11.0-2ubuntu0.2
  https://launchpad.net/ubuntu/+source/git/1:2.7.4-0ubuntu1.2
  https://launchpad.net/ubuntu/+source/git/1:1.9.1-1ubuntu0.6

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