[USN-4309-1] Vim vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-4309-1
March 23, 2020

vim vulnerabilities
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in Vim.

Software Description:
- vim: Vi IMproved - enhanced vi editor

Details:

It was discovered that Vim incorrectly handled certain sources.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and
Ubuntu 16.04 LTS (CVE-2017-1110)

It was discovered that Vim incorrectly handled certain files.
An attacker could possibly use this issue to execute arbitrary code.
This issue only affected Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
(CVE-2017-5953)

It was discovered that Vim incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 16.06 LTS. (CVE-2018-20786)

It was discovered that Vim incorrectly handled certain inputs. An attacker
could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 19.10. (CVE-2019-20079)

It was discovered that Vim incorrectly handled certain files. An attacker
could possibly use this issue to execute arbitrary code. This issue
only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS.
(CVE-2017-6349, CVE-2017-6350)

Update instructions:

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

Ubuntu 19.10:
  vim                             2:8.1.0875-5ubuntu2.1
  vim-common                      2:8.1.0875-5ubuntu2.1
  vim-gui-common                  2:8.1.0875-5ubuntu2.1
  vim-runtime                     2:8.1.0875-5ubuntu2.1

Ubuntu 18.04 LTS:
  vim                             2:8.0.1453-1ubuntu1.3
  vim-common                      2:8.0.1453-1ubuntu1.3
  vim-gui-common                  2:8.0.1453-1ubuntu1.3
  vim-runtime                     2:8.0.1453-1ubuntu1.3

Ubuntu 16.04 LTS:
  vim                             2:7.4.1689-3ubuntu1.4
  vim-common                      2:7.4.1689-3ubuntu1.4
  vim-gui-common                  2:7.4.1689-3ubuntu1.4
  vim-runtime                     2:7.4.1689-3ubuntu1.4

Ubuntu 14.04 ESM:
  vim                             2:7.4.052-1ubuntu3.1+esm1
  vim-common                      2:7.4.052-1ubuntu3.1+esm1
  vim-gui-common                  2:7.4.052-1ubuntu3.1+esm1
  vim-runtime                     2:7.4.052-1ubuntu3.1+esm1

Ubuntu 12.04 ESM:
  vim                             2:7.3.429-2ubuntu2.3
  vim-common                      2:7.3.429-2ubuntu2.3
  vim-gui-common                  2:7.3.429-2ubuntu2.3
  vim-runtime                     2:7.3.429-2ubuntu2.3

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

References:
  https://usn.ubuntu.com/4309-1
  CVE-2017-11109, CVE-2017-5953, CVE-2017-6349, CVE-2017-6350,
  CVE-2018-20786, CVE-2019-20079

Package Information:
  https://launchpad.net/ubuntu/+source/vim/2:8.1.0875-5ubuntu2.1
  https://launchpad.net/ubuntu/+source/vim/2:8.0.1453-1ubuntu1.3
  https://launchpad.net/ubuntu/+source/vim/2:7.4.1689-3ubuntu1.4
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