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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200412-10">
<title>Vim, gVim: Vulnerable options in modelines</title>
<synopsis>
Several vulnerabilities related to the use of options in modelines have
been found and fixed in Vim. They could potentially result in a local user
escalating privileges.
</synopsis>
<product type="ebuild">vim</product>
<announced>December 15, 2004</announced>
<revised>December 15, 2004: 01</revised>
<bug>73715</bug>
<access>local</access>
<affected>
<package name="app-editors/vim" auto="yes" arch="*">
<unaffected range="ge">6.3-r2</unaffected>
<vulnerable range="lt">6.3-r2</vulnerable>
</package>
<package name="app-editors/gvim" auto="yes" arch="*">
<unaffected range="ge">6.3-r2</unaffected>
<vulnerable range="lt">6.3-r2</vulnerable>
</package>
</affected>
<background>
<p>
Vim is an efficient, highly configurable improved version of the
classic 'vi' text editor. gVim is the GUI version of Vim.
</p>
</background>
<description>
<p>
Gentoo's Vim maintainer, Ciaran McCreesh, found several
vulnerabilities related to the use of options in Vim modelines. Options
like 'termcap', 'printdevice', 'titleold', 'filetype', 'syntax',
'backupext', 'keymap', 'patchmode' or 'langmenu' could be abused.
</p>
</description>
<impact type="normal">
<p>
A local attacker could write a malicious file in a world readable
location which, when opened in a modeline-enabled Vim, could trigger
arbitrary commands with the rights of the user opening the file,
resulting in privilege escalation. Please note that modelines are
disabled by default in the /etc/vimrc file provided in Gentoo.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Vim users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-editors/vim-6.3-r2&quot;</code>
<p>
All gVim users should also upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-editors/gvim-6.3-r2&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1138">CAN-2004-1138</uri>
</references>
<metadata tag="requester" timestamp="Fri, 10 Dec 2004 22:32:12 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Mon, 13 Dec 2004 17:03:31 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Wed, 15 Dec 2004 14:00:28 +0000">
koon
</metadata>
</glsa>