A Git security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS and 21.10.

USN-5376-1: Git vulnerability

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Ubuntu Security Notice USN-5376-1
April 12, 2022

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

- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Git could be made to run arbitrary commands in platforms with multiple users
support.

Software Description:
- git: fast, scalable, distributed revision control system

Details:

俞晨东 discovered that Git incorrectly handled certain repository paths
in platforms with multiple users support. An attacker could possibly use
this issue to run arbitrary commands.

Update instructions:

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

Ubuntu 21.10:
git 1:2.32.0-1ubuntu1.1

Ubuntu 20.04 LTS:
git 1:2.25.1-1ubuntu3.3

Ubuntu 18.04 LTS:
git 1:2.17.1-1ubuntu0.10

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

References:
  https://ubuntu.com/security/notices/USN-5376-1
CVE-2022-24765

Package Information:
  https://launchpad.net/ubuntu/+source/git/1:2.32.0-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/git/1:2.25.1-1ubuntu3.3
  https://launchpad.net/ubuntu/+source/git/1:2.17.1-1ubuntu0.10