smarty - several vulnerabilities

Several remote vulnerabilities have been discovered in Smarty, a PHP
templating engine. The Common Vulnerabilities and Exposures project
identifies the following problems:

• CVE-2008-4810
  The _expand_quoted_text function allows for certain restrictions in
  templates, like function calling and PHP execution, to be bypassed.
• CVE-2009-1669
  The smarty_function_math function allows context-dependent attackers
  to execute arbitrary commands via shell metacharacters in the equation
  attribute of the math function.

For the old stable distribution (etch), these problems have been fixed
in version 2.6.14-1etch2.

For the stable distribution (lenny), these problems have been fixed in
version 2.6.20-1.2.

For the unstable distribution (sid), these problems will be fixed soon.

We recommend that you upgrade your smarty package.