Git be made to run programs if it processed a specially crafted file.
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.
5 October 2017
A security issue affects these releases of Ubuntu and its derivatives:
Git be made to run programs if it processed a specially crafted file.
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.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon