Debian Linux Security Advisory 2455-1 - Helmut Hummel of the typo3 security team discovered that typo3, a web content management system, is not properly sanitizing output of the exception handler. This allows an attacker to conduct cross-site scripting attacks if either third-party extensions are installed that do not sanitize this output on their own or in the presence of extensions using the extbase MVC framework which accept objects to controller actions.
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Debian Security Advisory DSA-2455-1 security@debian.org
http://www.debian.org/security/ Nico Golde
April 20, 2012 http://www.debian.org/security/faq
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Package : typo3-src
Vulnerability : missing input sanitization
Problem type : remote
Debian-specific: no
CVE IDs : CVE-2012-2112
Debian bug : 669158
Helmut Hummel of the typo3 security team discovered that typo3, a web
content management system, is not properly sanitizing output of the
exception handler. This allows an attacker to conduct cross-site
scripting attacks if either third-party extensions are installed that do
not sanitize this output on their own or in the presence of extensions
using the extbase MVC framework which accept objects to controller actions.
For the stable distribution (squeeze), this problem has been fixed in
version 4.3.9+dfsg1-1+squeeze4.
For the testing (wheezy) and unstable (sid) distributions, this problem
will be fixed soon.
We recommend that you upgrade your typo3-src packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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