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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200501-07">
<title>xine-lib: Multiple overflows</title>
<synopsis>
xine-lib contains multiple overflows potentially allowing execution of
arbitrary code.
</synopsis>
<product type="ebuild">xine-lib</product>
<announced>January 06, 2005</announced>
<revised>January 06, 2005: 01</revised>
<bug>74475</bug>
<access>remote</access>
<affected>
<package name="media-libs/xine-lib" auto="yes" arch="*">
<unaffected range="ge">1_rc8-r1</unaffected>
<unaffected range="rge">1_rc6-r1</unaffected>
<vulnerable range="lt">1_rc8-r1</vulnerable>
</package>
</affected>
<background>
<p>
xine-lib is a multimedia library which can be utilized to create
multimedia frontends.
</p>
</background>
<description>
<p>
Ariel Berkman discovered that xine-lib reads specific input data
into an array without checking the input size in demux_aiff.c, making
it vulnerable to a buffer overflow (CAN-2004-1300) . iDefense
discovered that the PNA_TAG handling code in pnm_get_chunk() does not
check if the input size is larger than the buffer size (CAN-2004-1187).
iDefense also discovered that in this same function, a negative value
could be given to an unsigned variable that specifies the read length
of input data (CAN-2004-1188).
</p>
</description>
<impact type="normal">
<p>
A remote attacker could craft a malicious movie or convince a
targeted user to connect to a malicious PNM server, which could result
in the execution of arbitrary code with the rights of the user running
any xine-lib frontend.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All xine-lib users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose media-libs/xine-lib</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1187">CAN-2004-1187</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1188">CAN-2004-1188</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1300">CAN-2004-1300</uri>
<uri link="http://www.idefense.com/application/poi/display?id=176&amp;type=vulnerabilities">iDefense Advisory</uri>
<uri link="http://www.idefense.com/application/poi/display?id=177&amp;type=vulnerabilities">iDefense Advisory</uri>
<uri link="http://tigger.uic.edu/~jlongs2/holes/xine-lib.txt">Ariel Berkman Advisory</uri>
</references>
<metadata tag="requester" timestamp="Tue, 21 Dec 2004 14:06:44 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Tue, 21 Dec 2004 16:57:50 +0000">
SeJo
</metadata>
<metadata tag="bugReady" timestamp="Thu, 6 Jan 2005 08:50:09 +0000">
koon
</metadata>
</glsa>