| <?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>October 07, 2008</announced> |
| <revised>October 07, 2008: 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="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2149">CVE-2008-2149</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3908">CVE-2008-3908</uri> |
| </references> |
| <metadata tag="requester" timestamp="Sun, 21 Sep 2008 11:08:59 +0000"> |
| p-y |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sun, 21 Sep 2008 11:09:31 +0000"> |
| p-y |
| </metadata> |
| <metadata tag="submitter" timestamp="Fri, 26 Sep 2008 09:37:40 +0000"> |
| keytoaster |
| </metadata> |
| </glsa> |