USN-5076-1: Git vulnerability

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• git - fast, scalable, distributed revision control system

Details

It was discovered that Git allowed newline characters in
certain repository paths. An attacker could potentially use this issue to perform
cross-protocol requests.

Update instructions

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

Ubuntu 20.04

• git - 1:2.25.1-1ubuntu3.2

Ubuntu 18.04

• git - 1:2.17.1-1ubuntu0.9

Ubuntu 16.04

• git - 1:2.7.4-0ubuntu1.10+esm1
  Available with Ubuntu Pro

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

References

• CVE-2021-40330