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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200407-13">
<title>PHP: Multiple security vulnerabilities</title>
<synopsis>
Multiple security vulnerabilities, potentially allowing remote code
execution, were found and fixed in PHP.
</synopsis>
<product type="ebuild">PHP</product>
<announced>July 15, 2004</announced>
<revised>July 15, 2004: 01</revised>
<bug>56985</bug>
<access>remote</access>
<affected>
<package name="dev-php/php" auto="yes" arch="*">
<unaffected range="ge">4.3.8</unaffected>
<vulnerable range="le">4.3.7-r1</vulnerable>
</package>
<package name="dev-php/mod_php" auto="yes" arch="*">
<unaffected range="ge">4.3.8</unaffected>
<vulnerable range="le">4.3.7-r1</vulnerable>
</package>
<package name="dev-php/php-cgi" auto="yes" arch="*">
<unaffected range="ge">4.3.8</unaffected>
<vulnerable range="le">4.3.7-r1</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>
Several security vulnerabilities were found and fixed in version 4.3.8 of
PHP. The strip_tags() function, used to sanitize user input, could in
certain cases allow tags containing \0 characters (CAN-2004-0595). When
memory_limit is used, PHP might unsafely interrupt other functions
(CAN-2004-0594). The ftok and itpc functions were missing safe_mode checks.
It was possible to bypass open_basedir restrictions using MySQL's LOAD DATA
LOCAL function. Furthermore, the IMAP extension was incorrectly allocating
memory and alloca() calls were replaced with emalloc() for better stack
protection.
</p>
</description>
<impact type="high">
<p>
Successfully exploited, the memory_limit problem could allow remote
excution of arbitrary code. By exploiting the strip_tags vulnerability, it
is possible to pass HTML code that would be considered as valid tags by the
Microsoft Internet Explorer and Safari browsers. Using ftok, itpc or
MySQL's LOAD DATA LOCAL, it is possible to bypass PHP configuration
restrictions.
</p>
</impact>
<workaround>
<p>
There is no known workaround that would solve all these problems. All users
are encouraged to upgrade to the latest available versions.
</p>
</workaround>
<resolution>
<p>
All PHP, mod_php and php-cgi users should upgrade to the latest stable
version:
</p>
<code>
# emerge sync
# emerge -pv ">=dev-php/php-4.3.8"
# emerge ">=dev-php/php-4.3.8"
# emerge -pv ">=dev-php/mod_php-4.3.8"
# emerge ">=dev-php/mod_php-4.3.8"
# emerge -pv ">=dev-php/php-cgi-4.3.8"
# emerge ">=dev-php/php-cgi-4.3.8"</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0594">CAN-2004-0594</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0595">CAN-2004-0595</uri>
<uri link="http://security.e-matters.de/advisories/112004.html">E-Matters Advisory 11/2004</uri>
<uri link="http://security.e-matters.de/advisories/122004.html">E-Matters Advisory 12/2004</uri>
</references>
<metadata tag="submitter">
koon
</metadata>
</glsa>
|
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