Five recent advisories by Secunia are noted below. Please patch once updates become available.

CUPS Multiple Integer Overflow Vulnerabilities
MODERATELY CRTICAL
http://secunia.com/advisories/12921/

Successful exploitation may potentially allow execution of arbitrary code with the privileges of the print spooler, when a specially crafted PDF document is printed.


Xpdf Multiple Integer Overflow Vulnerabilities
HIGHLY CRITICAL
http://secunia.com/advisories/12917/

The vulnerabilities are caused due to some unspecified integer overflow errors, which potentially can be exploited to execute arbitrary code when a specially crafted PDF document is viewed.

Linux Kernel Multiple Vulnerabilities
LESS CRITICAL
http://secunia.com/advisories/12525/

Multiple vulnerabilities have been reported in the Linux kernel, which can be exploited to disclose kernel data, cause a DoS (Denial of Service), or bypass certain security restrictions.


Linux Kernel Terminal Subsystem Race Condition Vulnerabilities
LESS CRITICAL
http://secunia.com/advisories/12951/

Two vulnerabilities have been reported in the Linux kernel, which can be exploited to potentially disclose kernel data or cause a DoS (Denial of Service).

LinuxStat "template" Directory Traversal Vulnerability
MODERATELY CRITICAL
http://secunia.com/advisories/12963/

A vulnerability has been reported in LinuxStat, which can be exploited by malicious people to disclose sensitive information.