==========================================================================
Ubuntu Security Notice USN-3438-1
October 05, 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 be made to run programs if it processed a specially crafted file.
Software Description:
– git: fast, scalable, distributed revision control system
Details:
It was discovered that Git incorrectly handled certain subcommands such as
cvsserver. A remote attacker could possibly use this issue via shell
metacharacters in modules names to execute arbitrary code.
This update also removes the cvsserver subcommand from git-shell by
default.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
git 1:2.11.0-2ubuntu0.3
Ubuntu 16.04 LTS:
git 1:2.7.4-0ubuntu1.3
Ubuntu 14.04 LTS:
git 1:1.9.1-1ubuntu0.7
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3438-1
CVE-2017-14867
Package Information:
https://launchpad.net/ubuntu/+source/git/1:2.11.0-2ubuntu0.3
https://launchpad.net/ubuntu/+source/git/1:2.7.4-0ubuntu1.3
https://launchpad.net/ubuntu/+source/git/1:1.9.1-1ubuntu0.7
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