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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200505-07">
<title>libTIFF: Buffer overflow</title>
<synopsis>
The libTIFF library is vulnerable to a buffer overflow, potentially
resulting in the execution of arbitrary code.
</synopsis>
<product type="ebuild">tiff</product>
<announced>May 10, 2005</announced>
<revised>May 22, 2006: 02</revised>
<bug>91584</bug>
<access>remote</access>
<affected>
<package name="media-libs/tiff" auto="yes" arch="*">
<unaffected range="ge">3.7.2</unaffected>
<vulnerable range="lt">3.7.2</vulnerable>
</package>
</affected>
<background>
<p>
libTIFF provides support for reading and manipulating TIFF (Tag Image
File Format) images.
</p>
</background>
<description>
<p>
Tavis Ormandy of the Gentoo Linux Security Audit Team discovered a
stack based buffer overflow in the libTIFF library when reading a TIFF
image with a malformed BitsPerSample tag.
</p>
</description>
<impact type="normal">
<p>
Successful exploitation would require the victim to open a specially
crafted TIFF image, resulting in the execution of arbitrary code.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All libTIFF users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/tiff-3.7.2"</code>
</resolution>
<references>
<uri link="http://bugzilla.remotesensing.org/show_bug.cgi?id=843">LIBTIFF BUG#863</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1544">CVE-2005-1544</uri>
</references>
<metadata tag="submitter" timestamp="Mon, 09 May 2005 18:55:28 +0000">
taviso
</metadata>
<metadata tag="bugReady" timestamp="Tue, 10 May 2005 20:03:29 +0000">
jaervosz
</metadata>
</glsa>
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