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

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Debian Security Advisory DSA-2506-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                         Yves-Alexis Perez
July 02, 2012                          http://www.debian.org/security/faq
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Package        : libapache-mod-security
Vulnerability  : modsecurity bypass
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-2751
Debian Bug     : #678529

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/

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