Gallery 1.4.1 and below remote exploit vulnerability — GLSA 200402-04

The Gallery developers have discovered a potentially serious security flaw in Gallery 1.3.1, 1.3.2, 1.3.3, 1.4 and 1.4.1 which can allow a remote exploit of your webserver.

Affected packages

www-apps/gallery on all architectures
Affected versions < 1.4.1_p1
Unaffected versions >= 1.4.1_p1


Gallery is an open source image management system written in PHP. More information is available at


Starting in the 1.3.1 release, Gallery includes code to simulate the behaviour of the PHP 'register_globals' variable in environments where that setting is disabled. It is simulated by extracting the values of the various $HTTP_ global variables into the global namespace.


A crafted URL such as causes the 'register_globals' simulation code to overwrite the $HTTP_POST_VARS which, when it is extracted, will deliver the given payload. If the payload compromises $GALLERY_BASEDIR then the malicious user can perform a PHP injection exploit and gain remote access to the webserver with PHP user UID access rights.


The workaround for the vulnerability is to replace init.php and setup/init.php with the files in the following ZIP file:


All users are encouraged to upgrade their gallery installation:

 # emerge sync
 # emerge -p ">=www-apps/gallery-1.4.1_p1"
 # emerge ">=www-apps/gallery-1.4.1_p1"


Release date
February 11, 2004

Latest revision
February 11, 2004: 01



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