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<h2>DTSA-40-1</h2>
<dl>
<dt>Date Reported:</dt>
<dd>May 28th, 2007</dd>
<dt>Affected Package:</dt>
<dd><a href='http://packages.debian.org/src:php4'>php4</a></dd>
<dt>Vulnerability:</dt>
<dd>several vulnerabilities</dd>
<dt>Problem-Scope:</dt>
<dd>remote</dd>
<dt>Debian-specific:</dt>
<dd>No<br></dd>
<dt>CVE:</dt>
<dd>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1286'>CVE-2007-1286</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1380'>CVE-2007-1380</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1521'>CVE-2007-1521</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1583'>CVE-2007-1583</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1718'>CVE-2007-1718</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1777'>CVE-2007-1777</a>
<a href='http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2509'>CVE-2007-2509</a>
<br></dd>
<br><dt>More information:</dt>
<dd>IMPORTANT NOTE: <br>
php4 will be removed from testing (lenny); thus you are strongly <br>
advised to migrate to php5. If you cannot upgrade, you should <br>
consider using the stable distribution (etch) instead. <br>
<br>
Several remote vulnerabilities have been discovered in PHP, a <br>
server-side, HTML-embedded scripting language, which may lead to the <br>
execution of arbitrary code. The Common Vulnerabilities and Exposures <br>
project identifies the following problems: <br>
<br>
CVE-2007-1286 <br>
Stefan Esser discovered an overflow in the object reference handling <br>
code of the unserialize() function, which allows the execution of <br>
arbitrary code if malformed input is passed from an application. <br>
<br>
CVE-2007-1380 <br>
Stefan Esser discovered that the session handler performs <br>
insufficient validation of variable name length values, which allows <br>
information disclosure through a heap information leak. <br>
<br>
CVE-2007-1521 <br>
Stefan Esser discovered a double free vulnerability in the <br>
session_regenerate_id() function, which allows the execution of <br>
arbitrary code. <br>
<br>
CVE-2007-1538 <br>
Stefan Esser discovered that the mb_parse_str function sets the internal <br>
register_globals flag and does not disable it in certain cases when a script <br>
terminates, which allows remote attackers to invoke available PHP scripts with <br>
register_globals functionality that is not detectable by these scripts <br>
<br>
CVE-2007-1718 <br>
Stefan Esser discovered that the mail() function performs <br>
insufficient validation of folded mail headers, which allows mail <br>
header injection. <br>
<br>
CVE-2007-1777 <br>
Stefan Esser discovered that the extension to handle ZIP archives <br>
performs insufficient length checks, which allows the execution of <br>
arbitrary code. <br>
<br>
CVE-2007-2509 <br>
It was discovered that the ftp extension of PHP, a server-side, <br>
HTML-embedded scripting language performs insufficient input sanitising, <br>
which permits an attacker to execute arbitrary FTP commands. This <br>
requires the attacker to already have access to the FTP server. <br>
</dd>
<br><dt>For the testing distribution (lenny) this is fixed in version 6:4.4.4-9+lenny1</dt>
<dt>For the unstable distribution (sid) this is fixed in version 6:4.4.6-2</dt>
<br><dt>This upgrade is recommended if you use php4.<dt>
<br><dt>If you have the secure testing lines in your sources.list, you can update by running this command as root:</dt>
<dd>apt-get update && apt-get upgrade</dd>
<br>
<br>
<dt>To use the Debian testing security archive, add the following lines to your /etc/apt/sources.list:<dt>
<br>
<dd>deb http://security.debian.org/ testing/updates main contrib non-free</dd>
<dd>deb-src http://security.debian.org/ testing/updates main contrib non-free</dd>
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