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=========================================================== Ubuntu Security Notice USN-246-1 January 24, 2006 imagemagick vulnerabilities CVE-2005-4601, CVE-2006-0082, http://bugs.debian.org/345595 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog) Ubuntu 5.10 (Breezy Badger) The following packages are affected: imagemagick The problem can be corrected by upgrading the affected package to version 5:6.0.2.5-1ubuntu1.6 (for Ubuntu 4.10), 6:6.0.6.2-2.1ubuntu1.2 (for Ubuntu 5.04), or 6:6.2.3.4-1ubuntu1.1 (for Ubuntu 5.10). In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Florian Weimer discovered that the delegate code did not correctly handle file names which embed shell commands (CVE-2005-4601). Daniel Kobras found a format string vulnerability in the SetImageInfo() function (CVE-2006-0082). By tricking a user into processing an image file with a specially crafted file name, these two vulnerabilities could be exploited to execute arbitrary commands with the user's privileges. These vulnerability become particularly critical if malicious images are sent as email attachments and the email client uses imagemagick to convert/display the images (e. g. Thunderbird and Gnus). In addition, Eero Häkkinen reported a bug in the command line argument processing of the 'display' command. Arguments that contained wildcards and were expanded to several files could trigger a heap overflow. However, there is no known possiblity to exploit this remotely. (http://bugs.debian.org/345595)