[USN-4220-1] Git vulnerabilities

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-4220-1
December 10, 2019

git vulnerabilities
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Git.

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

Details:

Joern Schneeweisz and Nicolas Joly discovered that Git contained various
security flaws. An attacker could possibly use these issues to overwrite
arbitrary paths, execute arbitrary code, and overwrite files in the .git
directory.

Update instructions:

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

Ubuntu 19.10:
  git                             1:2.20.1-2ubuntu1.19.10.1

Ubuntu 19.04:
  git                             1:2.20.1-2ubuntu1.19.04.1

Ubuntu 18.04 LTS:
  git                             1:2.17.1-1ubuntu0.5

Ubuntu 16.04 LTS:
  git                             1:2.7.4-0ubuntu1.7

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

References:
  https://usn.ubuntu.com/4220-1
  CVE-2019-1348, CVE-2019-1349, CVE-2019-1350, CVE-2019-1351,
  CVE-2019-1352, CVE-2019-1353, CVE-2019-1354, CVE-2019-1387,
  CVE-2019-19604

Package Information:
  https://launchpad.net/ubuntu/+source/git/1:2.20.1-2ubuntu1.19.10.1
  https://launchpad.net/ubuntu/+source/git/1:2.20.1-2ubuntu1.19.04.1
  https://launchpad.net/ubuntu/+source/git/1:2.17.1-1ubuntu0.5
  https://launchpad.net/ubuntu/+source/git/1:2.7.4-0ubuntu1.7

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