Multiple untrusted search path vulnerabilities in pdfjam allow local users to gain privileges via a Trojan horse program in (1) the current working directory or (2) /var/tmp, related to the (a) pdf90, (b) pdfjoin, and (c) pdfnup scripts.

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2008-5843)