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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200810-01">
<title>WordNet: Execution of arbitrary code</title>
<synopsis>
Multiple vulnerabilities were found in WordNet, possibly allowing for the
execution of arbitrary code.
</synopsis>
<product type="ebuild">wordnet</product>
<announced>2008-10-07</announced>
<revised>2008-10-07: 01</revised>
<bug>211491</bug>
<access>local, remote</access>
<affected>
<package name="app-dicts/wordnet" auto="yes" arch="*">
<unaffected range="ge">3.0-r2</unaffected>
<vulnerable range="lt">3.0-r2</vulnerable>
</package>
</affected>
<background>
<p>
WordNet is a large lexical database of English.
</p>
</background>
<description>
<p>
Jukka Ruohonen initially reported a boundary error within the
searchwn() function in src/wn.c. A thorough investigation by the oCERT
team revealed several other vulnerabilities in WordNet:
</p>
<ul>
<li>Jukka Ruohonen and Rob Holland (oCERT) reported multiple boundary
errors within the searchwn() function in src/wn.c, the wngrep()
function in lib/search.c, the morphstr() and morphword() functions in
lib/morph.c, and the getindex() in lib/search.c, which lead to
stack-based buffer overflows.</li>
<li>Rob Holland (oCERT) reported two
boundary errors within the do_init() function in lib/morph.c, which
lead to stack-based buffer overflows via specially crafted
"WNSEARCHDIR" or "WNHOME" environment variables.</li>
<li>Rob Holland
(oCERT) reported multiple boundary errors in the bin_search() and
bin_search_key() functions in binsrch.c, which lead to stack-based
buffer overflows via specially crafted data files.</li>
<li>Rob Holland
(oCERT) reported a boundary error within the parse_index() function in
lib/search.c, which leads to a heap-based buffer overflow via specially
crafted data files.</li>
</ul>
</description>
<impact type="normal">
<ul>
<li>In case the application is accessible e.g. via a web server,
a remote attacker could pass overly long strings as arguments to the
"wm" binary, possibly leading to the execution of arbitrary code.</li>
<li>A local attacker could exploit the second vulnerability via
specially crafted "WNSEARCHDIR" or "WNHOME" environment variables,
possibly leading to the execution of arbitrary code with escalated
privileges.</li>
<li>A local attacker could exploit the third and
fourth vulnerability by making the application use specially crafted
data files, possibly leading to the execution of arbitrary code.</li>
</ul>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All WordNet users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-dicts/wordnet-3.0-r2"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2149">CVE-2008-2149</uri>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3908">CVE-2008-3908</uri>
</references>
<metadata tag="requester" timestamp="2008-09-21T11:08:59Z">
p-y
</metadata>
<metadata tag="bugReady" timestamp="2008-09-21T11:09:31Z">
p-y
</metadata>
<metadata tag="submitter" timestamp="2008-09-26T09:37:40Z">
keytoaster
</metadata>
</glsa>
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