pdfjam: multiple vulnerabilities

From the Gentoo advisory:

* Martin Vaeth reported multiple untrusted search path vulnerabilities (CVE-2008-5843).

* Marcus Meissner of the SUSE Security Team reported that temporary files are created with a predictable name (CVE-2008-5743).

A local attacker could place a specially crafted Python module in the current working directory or the /var/tmp directory, and entice a user to run the PDFjam scripts, leading to the execution of arbitrary code with the privileges of the user running the application. A local attacker could also leverage symlink attacks to overwrite arbitrary files.