1. Ubuntu Security Notices
  2. USN-4761-1

USN-4761-1: Git vulnerability

Publication date

9 March 2021

Overview

Git could be made to run programs if it received specially crafted network traffic.

Releases

Packages

  • git - fast, scalable, distributed revision control system

Details

Matheus Tavares discovered that Git incorrectly handled delay-capable
clean/smudge filters when being used on case-insensitive filesystems. A
remote attacker could possibly use this issue to execute arbitrary code.

Matheus Tavares discovered that Git incorrectly handled delay-capable
clean/smudge filters when being used on case-insensitive filesystems. A
remote attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.10 groovy git –  1:2.27.0-1ubuntu1.1
20.04 focal git –  1:2.25.1-1ubuntu3.1
18.04 bionic git –  1:2.17.1-1ubuntu0.8
16.04 xenial git –  1:2.7.4-0ubuntu1.10

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References

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