| <?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> |