[USN-6965-1] Vim vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-6965-1
August 21, 2024

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

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

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Vim.

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

Details:

It was discovered that vim incorrectly handled parsing of filenames in its
search functionality. If a user was tricked into opening a specially
crafted file, an attacker could crash the application, leading to a denial
of service. (CVE-2021-3973)

It was discovered that vim incorrectly handled memory when opening and
searching the contents of certain files. If a user was tricked into opening
a specially crafted file, an attacker could crash the application, leading
to a denial of service, or possibly achieve code execution with user
privileges. (CVE-2021-3974)

It was discovered that vim incorrectly handled memory when opening and
editing certain files. If a user was tricked into opening a specially
crafted file, an attacker could crash the application, leading to a denial
of service, or possibly achieve code execution with user privileges.
(CVE-2021-3984, CVE-2021-4019, CVE-2021-4069)

Update instructions:

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

Ubuntu 14.04 LTS
vim 2:7.4.052-1ubuntu3.1+esm17
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-6965-1
CVE-2021-3973, CVE-2021-3974, CVE-2021-3984, CVE-2021-4019,
CVE-2021-4069