glsa-200712-10.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200712-10">
  <title>Samba: Execution of arbitrary code</title>
  <synopsis>
    Samba contains a buffer overflow vulnerability potentially resulting in the
    execution of arbitrary code.
  </synopsis>
  <product type="ebuild">samba</product>
  <announced>2007-12-10</announced>
  <revised count="01">2007-12-10</revised>
  <bug>200773</bug>
  <access>remote</access>
  <affected>
    <package name="net-fs/samba" auto="yes" arch="*">
      <unaffected range="ge">3.0.28</unaffected>
      <vulnerable range="lt">3.0.28</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    Samba is a suite of SMB and CIFS client/server programs for UNIX.
    </p>
  </background>
  <description>
    <p>
    Alin Rad Pop (Secunia Research) discovered a boundary checking error in
    the send_mailslot() function which could lead to a stack-based buffer
    overflow.
    </p>
  </description>
  <impact type="high">
    <p>
    A remote attacker could send a specially crafted "SAMLOGON" domain
    logon packet, possibly leading to the execution of arbitrary code with
    elevated privileges. Note that this vulnerability is exploitable only
    when domain logon support is enabled in Samba, which is not the case in
    Gentoo's default configuration.
    </p>
  </impact>
  <workaround>
    <p>
    Disable domain logon in Samba by setting "<i>domain logons = no</i>" in
    the "global" section of your smb.conf and restart Samba.
    </p>
  </workaround>
  <resolution>
    <p>
    All Samba users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose "&gt;=net-fs/samba-3.0.28"</code>
  </resolution>
  <references>
    <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6015">CVE-2007-6015</uri>
  </references>
  <metadata tag="submitter" timestamp="2007-12-10T02:00:00Z">
    rbu
  </metadata>
  <metadata tag="bugReady" timestamp="2007-12-10T19:33:11Z">
    rbu
  </metadata>
</glsa>