USN-4334-1: Git vulnerability

21 April 2020

git vulnerability

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

  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Git could be made to expose sensitive information.

Software Description

  • git - fast, scalable, distributed revision control system

Details

Carlo Arenas discovered that Git incorrectly handled certain URLs containing newlines, empty hosts, or lacking a scheme. A remote attacker could possibly use this issue to trick Git into returning credential information for a wrong host.

Update instructions

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

Ubuntu 19.10
git - 1:2.20.1-2ubuntu1.19.10.3
Ubuntu 18.04 LTS
git - 1:2.17.1-1ubuntu0.7
Ubuntu 16.04 LTS
git - 1:2.7.4-0ubuntu1.9

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