glsa-200611-24.xml


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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">

<glsa id="200611-24">
  <title>LHa: Multiple vulnerabilities</title>
  <synopsis>
    LHa is affected by several vulnerabilities including the remote execution
    of arbitrary code.
  </synopsis>
  <product type="ebuild">lha</product>
  <announced>November 28, 2006</announced>
  <revised>November 28, 2006: 01</revised>
  <bug>151252</bug>
  <access>remote</access>
  <affected>
    <package name="app-arch/lha" auto="yes" arch="*">
      <unaffected range="ge">114i-r6</unaffected>
      <vulnerable range="lt">114i-r6</vulnerable>
    </package>
  </affected>
  <background>
    <p>
    LHa is a console-based program for packing and unpacking LHarc
    archives.
    </p>
  </background>
  <description>
    <p>
    Tavis Ormandy of the Google Security Team discovered several
    vulnerabilities in the LZH decompression component used by LHa. The
    make_table function of unlzh.c contains an array index error and a
    buffer overflow vulnerability. The build_tree function of unpack.c
    contains a buffer underflow vulnerability. Additionally, unlzh.c
    contains a code that could run in an infinite loop.
    </p>
  </description>
  <impact type="normal">
    <p>
    By enticing a user to uncompress a specially crafted archive, a remote
    attacker could cause a Denial of Service by CPU consumption or execute
    arbitrary code with the rights of the user running the application.
    </p>
  </impact>
  <workaround>
    <p>
    There is no known workaround at this time.
    </p>
  </workaround>
  <resolution>
    <p>
    All LHa users should upgrade to the latest version:
    </p>
    <code>
    # emerge --sync
    # emerge --ask --oneshot --verbose &quot;&gt;=app-arch/lha-114i-r6&quot;</code>
  </resolution>
  <references>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4335">CVE-2006-4335</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4336">CVE-2006-4336</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4337">CVE-2006-4337</uri>
    <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4338">CVE-2006-4338</uri>
  </references>
  <metadata tag="requester" timestamp="Fri, 24 Nov 2006 21:52:23 +0000">
    falco
  </metadata>
  <metadata tag="submitter" timestamp="Mon, 27 Nov 2006 17:02:28 +0000">
    falco
  </metadata>
  <metadata tag="bugReady" timestamp="Mon, 27 Nov 2006 17:07:24 +0000">
    falco
  </metadata>
</glsa>