– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 202003-04
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: Normal
Title: Vim, gVim: Remote execution of arbitrary code
Date: March 12, 2020
Bugs: #687394
ID: 202003-04

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

A vulnerability has been found in Vim and gVim concerning how certain
modeline options are treated.

Background
==========

Vim is an efficient, highly configurable improved version of the
classic ‘vi’ text editor. gVim is the GUI version of Vim.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 app-editors/vim < 8.1.1486 >= 8.1.1486
2 app-editors/gvim < 8.1.1486 >= 8.1.1486
——————————————————————-
2 affected packages

Description
===========

It was found that the `:source!` command was not restricted by the
sandbox mode. If modeline was explicitly enabled, opening a specially
crafted text file in vim could result in arbitrary command execution.

Impact
======

A remote attacker could entice a user to open a specially crafted file
using Vim or gVim, possibly resulting in execution of arbitrary code
with the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Vim users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-editors/vim-8.1.1486”

All gVim users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-editors/gvim-8.1.1486”

References
==========

[ 1 ] CVE-2019-12735
https://nvd.nist.gov/vuln/detail/CVE-2019-12735

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202003-04

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

—–BEGIN PGP SIGNATURE—–
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=6MKu
—–END PGP SIGNATURE—–