typo3-src - several vulnerabilities

Several remote vulnerabilities have been discovered in the TYPO3 content
management framework.

Because of a not sufficiently secure default value of the TYPO3
configuration variable fileDenyPattern, authenticated backend users
could upload files that allowed to execute arbitrary code as the
webserver user.

User input processed by fe_adminlib.inc is not being properly filtered
to prevent Cross Site Scripting (XSS) attacks, which is exposed when
specific plugins are in use.

For the stable distribution (etch), these problems have been fixed in version
4.0.2+debian-5.

For the unstable distribution (sid), these problems have been fixed in
version 4.1.7-1.

We recommend that you upgrade your typo3 package.