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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200504-15">
<title>PHP: Multiple vulnerabilities</title>
<synopsis>
Several vulnerabilities were found and fixed in PHP image handling
functions, potentially resulting in Denial of Service conditions or the
remote execution of arbitrary code.
</synopsis>
<product type="ebuild">PHP</product>
<announced>April 18, 2005</announced>
<revised>April 18, 2005: 01</revised>
<bug>87517</bug>
<access>remote</access>
<affected>
<package name="dev-php/php" auto="yes" arch="*">
<unaffected range="ge">4.3.11</unaffected>
<vulnerable range="lt">4.3.11</vulnerable>
</package>
<package name="dev-php/mod_php" auto="yes" arch="*">
<unaffected range="ge">4.3.11</unaffected>
<vulnerable range="lt">4.3.11</vulnerable>
</package>
<package name="dev-php/php-cgi" auto="yes" arch="*">
<unaffected range="ge">4.3.11</unaffected>
<vulnerable range="lt">4.3.11</vulnerable>
</package>
</affected>
<background>
<p>
PHP is a general-purpose scripting language widely used to develop
web-based applications. It can run inside a web server using the
mod_php module or the CGI version of PHP, or can run stand-alone in a
CLI.
</p>
</background>
<description>
<p>
An integer overflow and an unbound recursion were discovered in
the processing of Image File Directory tags in PHP's EXIF module
(CAN-2005-1042, CAN-2005-1043). Furthermore, two infinite loops have
been discovered in the getimagesize() function when processing IFF or
JPEG images (CAN-2005-0524, CAN-2005-0525).
</p>
</description>
<impact type="high">
<p>
A remote attacker could craft an image file with a malicious EXIF
IFD tag, a large IFD nesting level or invalid size parameters and send
it to a web application that would process this user-provided image
using one of the affected functions. This could result in denying
service on the attacked server and potentially executing arbitrary code
with the rights of the web server.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All PHP users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php/php-4.3.11"</code>
<p>
All mod_php users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php/mod_php-4.3.11"</code>
<p>
All php-cgi users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php/php-cgi-4.3.11"</code>
</resolution>
<references>
<uri link="http://www.php.net/release_4_3_11.php">PHP 4.3.11 Release Announcement</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0524">CAN-2005-0524</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0525">CAN-2005-0525</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1042">CAN-2005-1042</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1043">CAN-2005-1043</uri>
</references>
<metadata tag="submitter" timestamp="Sun, 17 Apr 2005 16:51:49 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Sun, 17 Apr 2005 16:51:59 +0000">
koon
</metadata>
</glsa>
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