USN-3243-1: Git vulnerability

23 March 2017

git vulnerability

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

  • Ubuntu 14.04 LTS

Summary

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

Software Description

  • git - fast, scalable, distributed revision control system

Details

It was discovered that Git incorrectly sanitized branch names in the PS1 variable when configured to display the repository status in the shell prompt. If a user were tricked into exploring a malicious repository, a remote attacker could use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 14.04 LTS
git - 1:1.9.1-1ubuntu0.4

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.

References