70 lines
2.4 KiB
XML
70 lines
2.4 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200407-11">
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<title>wv: Buffer overflow vulnerability</title>
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<synopsis>
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A buffer overflow vulnerability exists in the wv library that can allow an
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attacker to execute arbitrary code with the privileges of the user running
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the vulnerable application.
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</synopsis>
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<product type="ebuild">app-text/wv</product>
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<announced>July 14, 2004</announced>
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<revised>May 22, 2006: 02</revised>
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<bug>56595</bug>
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<access>remote</access>
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<affected>
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<package name="app-text/wv" auto="yes" arch="*">
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<unaffected range="ge">1.0.0-r1</unaffected>
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<vulnerable range="lt">1.0.0-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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The wv library allows access to MS Word files. It can parse Word files
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and allow other applications, such as abiword, to import those files
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into their native formats.
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</p>
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</background>
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<description>
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<p>
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A use of strcat without proper bounds checking leads to an exploitable
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buffer overflow. The vulnerable code is executed when wv encounters an
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unrecognized token, so a specially crafted file, loaded in wv, can
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trigger the vulnerable code and execute it's own arbitrary code. This
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exploit is only possible when the user loads the document into HTML
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view mode.
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</p>
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</description>
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<impact type="normal">
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<p>
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By inducing a user into running wv on a special file, an attacker can
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execute arbitrary code with the permissions of the user running the
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vulnerable program.
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</p>
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</impact>
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<workaround>
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<p>
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Users should not view untrusted documents with wvHtml or applications
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using wv. When loading an untrusted document in an application using
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the wv library, make sure HTML view is disabled.
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</p>
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</workaround>
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<resolution>
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<p>
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All users should upgrade to the latest available version.
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=app-text/wv-1.0.0-r1"
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# emerge ">=app-text/wv-1.0.0-r1"</code>
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</resolution>
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<references>
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<uri link="http://www.idefense.com/application/poi/display?id=115&type=vulnerabilities&flashstatus=true">iDEFENSE Security Advisory</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0645">CVE-2004-0645</uri>
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</references>
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<metadata tag="submitter">
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dmargoli
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</metadata>
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</glsa>
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