glsa-202003-04.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202003-04">
  <title>Vim, gVim: Remote execution of arbitrary code</title>
  <synopsis>A vulnerability has been found in Vim and gVim concerning how
    certain modeline options are treated.
  </synopsis>
  <product type="ebuild">vim,gvim</product>
  <announced>2020-03-12</announced>
  <revised count="1">2020-03-12</revised>
  <bug>687394</bug>
  <access>local, remote</access>
  <affected>
    <package name="app-editors/vim" auto="yes" arch="*">
      <unaffected range="ge">8.1.1486</unaffected>
      <vulnerable range="lt">8.1.1486</vulnerable>
    </package>
    <package name="app-editors/gvim" auto="yes" arch="*">
      <unaffected range="ge">8.1.1486</unaffected>
      <vulnerable range="lt">8.1.1486</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>
      It was found that the <code>:source!</code> 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.
    </p>
  </description>
  <impact type="normal">
    <p>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.
    </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 "&gt;=app-editors/vim-8.1.1486"
    </code>
    
    <p>All gVim users should upgrade to the latest version:</p>
    
    <code>
      # emerge --sync
      # emerge --ask --oneshot --verbose "&gt;=app-editors/gvim-8.1.1486"
    </code>
    
  </resolution>
  <references>
    <uri link="https://nvd.nist.gov/vuln/detail/CVE-2019-12735">CVE-2019-12735</uri>
  </references>
  <metadata tag="requester" timestamp="2019-10-27T00:04:29Z">whissi</metadata>
  <metadata tag="submitter" timestamp="2020-03-12T20:37:36Z">whissi</metadata>
</glsa>