==========================================================================
Ubuntu Security Notice USN-6302-1
August 21, 2023

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

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in Vim.

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

Details:

It was discovered that Vim incorrectly handled memory when opening certain
files. If an attacker could trick a user into opening a specially crafted
file, it could cause Vim to crash, or possibly execute arbitrary code. This
issue only affected Ubuntu 22.04 LTS. (CVE-2022-2522, CVE-2022-2580,
CVE-2022-2817, CVE-2022-2819, CVE-2022-2862, CVE-2022-2889, CVE-2022-2982,
CVE-2022-3134)

It was discovered that Vim did not properly perform bounds checks in the
diff mode in certain situations. An attacker could possibly use this issue
to cause a denial of service. This issue only affected Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-2598)

It was discovered that Vim did not properly perform bounds checks in
certain situations. An attacker could possibly use this issue to cause a
denial of service. This issue only affected Ubuntu 22.04 LTS.
(CVE-2022-2816)

It was discovered that Vim incorrectly handled memory when skipping
compiled code. An attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-2874)

It was discovered that Vim incorrectly handled memory when opening certain
files. If an attacker could trick a user into opening a specially crafted
file, it could cause Vim to crash, or possibly execute arbitrary code. This
issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-3016,
CVE-2022-3037)

It was discovered that Vim incorrectly handled memory when invalid line
number on ":for" is ignored. An attacker could possibly use this issue to
cause a denial of service. (CVE-2022-3099)

It was discovered that Vim incorrectly handled memory when passing invalid
arguments to the assert_fails() method. An attacker could possibly use this
issue to cause a denial of service. This issue only affected Ubuntu 22.04
LTS. (CVE-2022-3153)

Update instructions:

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

Ubuntu 22.04 LTS:
  vim                             2:8.2.3995-1ubuntu2.11
  vim-athena                      2:8.2.3995-1ubuntu2.11
  vim-gtk                         2:8.2.3995-1ubuntu2.11
  vim-gtk3                        2:8.2.3995-1ubuntu2.11
  vim-nox                         2:8.2.3995-1ubuntu2.11
  vim-tiny                        2:8.2.3995-1ubuntu2.11
  xxd                             2:8.2.3995-1ubuntu2.11

Ubuntu 20.04 LTS:
  vim                             2:8.1.2269-1ubuntu5.17
  vim-athena                      2:8.1.2269-1ubuntu5.17
  vim-gtk                         2:8.1.2269-1ubuntu5.17
  vim-gtk3                        2:8.1.2269-1ubuntu5.17
  vim-nox                         2:8.1.2269-1ubuntu5.17
  vim-tiny                        2:8.1.2269-1ubuntu5.17
  xxd                             2:8.1.2269-1ubuntu5.17

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  vim                             2:8.0.1453-1ubuntu1.13+esm4
  vim-athena                      2:8.0.1453-1ubuntu1.13+esm4
  vim-gtk                         2:8.0.1453-1ubuntu1.13+esm4
  vim-gtk3                        2:8.0.1453-1ubuntu1.13+esm4
  vim-runtime                     2:8.0.1453-1ubuntu1.13+esm4
  vim-tiny                        2:8.0.1453-1ubuntu1.13+esm4
  xxd                             2:8.0.1453-1ubuntu1.13+esm4

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
  vim                             2:7.4.052-1ubuntu3.1+esm12
  vim-athena                      2:7.4.052-1ubuntu3.1+esm12
  vim-gtk                         2:7.4.052-1ubuntu3.1+esm12
  vim-nox                         2:7.4.052-1ubuntu3.1+esm12
  vim-tiny                        2:7.4.052-1ubuntu3.1+esm12

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

References:
  https://ubuntu.com/security/notices/USN-6302-1
  CVE-2022-2522, CVE-2022-2580, CVE-2022-2598, CVE-2022-2816,
  CVE-2022-2817, CVE-2022-2819, CVE-2022-2862, CVE-2022-2874,
  CVE-2022-2889, CVE-2022-2982, CVE-2022-3016, CVE-2022-3037,
  CVE-2022-3099, CVE-2022-3134, CVE-2022-3153

Package Information:
  https://launchpad.net/ubuntu/+source/vim/2:8.2.3995-1ubuntu2.11
  https://launchpad.net/ubuntu/+source/vim/2:8.1.2269-1ubuntu5.17