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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200511-10">
<title>RAR: Format string and buffer overflow vulnerabilities</title>
<synopsis>
RAR contains a format string error and a buffer overflow vulnerability that
may be used to execute arbitrary code.
</synopsis>
<product type="ebuild">rar</product>
<announced>November 13, 2005</announced>
<revised>November 13, 2005: 01</revised>
<bug>111926</bug>
<access>remote</access>
<affected>
<package name="app-arch/rar" auto="yes" arch="*">
<unaffected range="ge">3.5.1</unaffected>
<vulnerable range="lt">3.5.1</vulnerable>
</package>
</affected>
<background>
<p>
RAR is a powerful archive manager that can decompress RAR, ZIP and
other files, and can create new archives in RAR and ZIP file format.
</p>
</background>
<description>
<p>
Tan Chew Keong reported about two vulnerabilities found in RAR:
</p>
<ul>
<li>A format string error exists when displaying a diagnostic
error message that informs the user of an invalid filename in an
UUE/XXE encoded file.</li>
<li>Some boundary errors in the processing
of malicious ACE archives can be exploited to cause a buffer
overflow.</li>
</ul>
</description>
<impact type="normal">
<p>
A remote attacker could exploit these vulnerabilities by enticing
a user to:
</p>
<ul><li>decode a specially crafted UUE/XXE file,
or</li>
<li>extract a malicious ACE archive containing a file with an
overly long filename.</li>
</ul>
<p>
When the user performs these
actions, the arbitrary code of the attacker's choice will be executed.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All RAR users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-arch/rar-3.5.1&quot;</code>
</resolution>
<references>
<uri link="http://www.rarlabs.com/rarnew.htm">RAR Release Notes</uri>
<uri link="http://secunia.com/secunia_research/2005-53/advisory/">Secunia Research 11/10/2005</uri>
</references>
<metadata tag="requester" timestamp="Fri, 11 Nov 2005 09:12:31 +0000">
jaervosz
</metadata>
<metadata tag="submitter" timestamp="Fri, 11 Nov 2005 14:35:09 +0000">
adir
</metadata>
<metadata tag="bugReady" timestamp="Fri, 11 Nov 2005 14:35:22 +0000">
adir
</metadata>
</glsa>