glsa-200409-02.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200409-02">
  <title>MySQL: Insecure temporary file creation in mysqlhotcopy</title>
  <synopsis>
    The mysqlhotcopy utility can create temporary files with predictable paths,
    allowing an attacker to use a symlink to trick MySQL into overwriting
    important data.
  </synopsis>
  <product type="ebuild">MySQL</product>
  <announced>2004-09-01</announced>
  <revised>2004-09-01: 01</revised>
  <bug>60744</bug>
  <access>local</access>
  <affected>
    <package name="dev-db/mysql" auto="yes" arch="*">
      <unaffected range="ge">4.0.20-r1</unaffected>
      <vulnerable range="le">4.0.20</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    MySQL is a popular open-source multi-threaded, multi-user SQL database
    server.
    </p>
  </background>
  <description>
    <p>
    Jeroen van Wolffelaar discovered that the MySQL database hot copy utility
    (mysqlhotcopy.sh), when using the scp method, uses temporary files with
    predictable names. A malicious local user with write access to the /tmp
    directory could create a symbolic link pointing to a file, which may then
    be overwritten. In cases where mysqlhotcopy is run as root, a malicious
    user could create a symlink to a critical file such as /etc/passwd and
    cause it to be overwritten.
    </p>
  </description>
  <impact type="normal">
    <p>
    A local attacker could use this vulnerability to destroy other users' data
    or corrupt and destroy system files, possibly leading to a denial of
    service condition.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All MySQL users should upgrade to the latest version:
    </p>
    <code>
    # emerge sync

    # emerge -pv "&gt;=dev-db/mysql-4.0.20-r1"
    # emerge "&gt;=dev-db/mysql-4.0.20-r1"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0457">CAN-2004-0457</uri>
  </references>
  <metadata tag="requester" timestamp="2004-08-31T08:03:33Z">
    jaervosz
  </metadata>
  <metadata tag="submitter" timestamp="2004-08-31T15:42:33Z">
    koon
  </metadata>
</glsa>