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USN-3438-1: Git vulnerability

5 October 2017

Git be made to run programs if it processed a specially crafted file.



  • git - fast, scalable, distributed revision control system


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

Update instructions

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

Ubuntu 17.04
Ubuntu 16.04
Ubuntu 14.04

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