[USN-6195-1] Vim vulnerabilities

[Evan Caville]

==========================================================================
Ubuntu Security Notice USN-6195-1
July 03, 2023

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

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

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in Vim.

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

Details:

It was discovered that Vim contained an out-of-bounds read vulnerability.
An attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2022-0128)

It was discovered that Vim did not properly manage memory when freeing
allocated memory. An attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. (CVE-2022-0156)

It was discovered that Vim contained a heap-based buffer overflow
vulnerability. An attacker could possibly use this issue to cause a denial
of service or execute arbitrary code. (CVE-2022-0158)

It was discovered that Vim did not properly manage memory when recording
and using select mode. An attacker could possibly use this issue to cause
a denial of service. (CVE-2022-0393)

It was discovered that Vim incorrectly handled certain memory operations
during a visual block yank. An attacker could possibly use this issue to
cause a denial of service or execute arbitrary code. (CVE-2022-0407)

It was discovered that Vim contained a NULL pointer dereference
vulnerability when switching tabpages. An attacker could possible use this
issue to cause a denial of service. (CVE-2022-0696)

Update instructions:

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

Ubuntu 22.04 LTS:
   vim                             2:8.2.3995-1ubuntu2.9
   vim-athena                      2:8.2.3995-1ubuntu2.9
   vim-gtk3                        2:8.2.3995-1ubuntu2.9
   vim-nox                         2:8.2.3995-1ubuntu2.9
   vim-tiny                        2:8.2.3995-1ubuntu2.9
   xxd                             2:8.2.3995-1ubuntu2.9

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

References:
   https://ubuntu.com/security/notices/USN-6195-1
   CVE-2022-0128, CVE-2022-0156, CVE-2022-0158, CVE-2022-0393,
   CVE-2022-0407, CVE-2022-0696

Package Information:
   https://launchpad.net/ubuntu/+source/vim/2:8.2.3995-1ubuntu2.9

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