Internet security research firm iDefense has announced a series of vulnerabilities and patches for a variety of Unix- and Linux-based products.

A stack-based buffer overflow was revealed in version 3.00 of Xpdf, a popular viewer for reading PDF files, usually created by Adobe Acrobat.

"Remote exploitation of a buffer overflow vulnerability in the xpdf PDF viewer, as included in multiple Linux distributions, could allow attackers to execute arbitrary code as the user viewing a PDF file," the iDefense advisory said. According to the advisory, SuSE Linux, Red Hat Linux, Fedora Core, Debian Linux, Gentoo Linux, FreeBSD (ports) and OpenBSD are affected.

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