- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200602-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GraphicsMagick: Format string vulnerability Date: February 26, 2006 Bugs: #119476 ID: 200602-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in GraphicsMagick allows attackers to crash the application and potentially execute arbitrary code. Background ========== GraphicsMagick is a collection of tools to read, write and manipulate images in many formats. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-gfx/graphicsmagick < 1.1.7 >= 1.1.7 Description =========== The SetImageInfo function was found vulnerable to a format string mishandling. Daniel Kobras discovered that the handling of "%"-escaped sequences in filenames passed to the function is inadequate in ImageMagick GLSA 200602-06 and the same vulnerability exists in GraphicsMagick. Impact ====== By feeding specially crafted file names to GraphicsMagick an attacker can crash the program and possibly execute arbitrary code with the privileges of the user running GraphicsMagick. Workaround ========== There is no known workaround at this time. Resolution ========== All GraphicsMagick users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/graphicsmagick-1.1.7" References ========== [ 1 ] GLSA 200602-06 http://www.gentoo.org/security/en/glsa/glsa-200602-06.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200602-13.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security (at) gentoo (dot) org [email concealed] or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFEAc8KvcL1obalX08RAqezAJ9Fndylw6IwBtGzEyLEf7hDgcep/gCgrj7P HNLicyWa9K9ifCPKzt6SXoA= =xz3j -----END PGP SIGNATURE-----