Debian: DSA-2506-1 Critical: ModSecurity Remote Exploit

Qualys Vulnerability & Malware Research Labs discovered a vulnerability in
ModSecurity, a security module for the Apache webserver. In situations where
both 'Content:Disposition: attachment' and 'Content-Type: multipart' were
present in HTTP headers, the vulernability could allow an attacker to bypass
policy and execute cross-site script (XSS) attacks through properly crafted
HTML documents.

For the stable distribution (squeeze), this problem has been fixed in
version 2.5.12-1+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in
version 2.6.6-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.6.6-1.

In testing and unstable distribution, the source package has been renamed to
modsecurity-apache.

We recommend that you upgrade your libapache-mod-security 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/