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Debian Security Advisory DSA-2991-1                   security@debian.org
http://www.debian.org/security/                      Salvatore Bonaccorso
July 27, 2014                          http://www.debian.org/security/faq
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Package        : modsecurity-apache
CVE ID         : CVE-2013-5705

Martin Holst Swende discovered a flaw in the way chunked requests are
handled in ModSecurity, an Apache module whose purpose is to tighten the
Web application security. A remote attacker could use this flaw to
bypass intended mod_security restrictions by using chunked transfer
coding with a capitalized Chunked value in the Transfer-Encoding HTTP
header, allowing to send requests containing content that should have
been removed by mod_security.

For the stable distribution (wheezy), this problem has been fixed in
version 2.6.6-6+deb7u2.

For the testing distribution (jessie), this problem has been fixed in
version 2.7.7-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.7.7-1.

We recommend that you upgrade your modsecurity-apache 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

Debian: DSA-2991-1: modsecurity-apache security update

July 27, 2014
Martin Holst Swende discovered a flaw in the way chunked requests are handled in ModSecurity, an Apache module whose purpose is to tighten the Web application security

Summary

For the stable distribution (wheezy), this problem has been fixed in
version 2.6.6-6+deb7u2.

For the testing distribution (jessie), this problem has been fixed in
version 2.7.7-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.7.7-1.

We recommend that you upgrade your modsecurity-apache 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

Severity
Martin Holst Swende discovered a flaw in the way chunked requests are
handled in ModSecurity, an Apache module whose purpose is to tighten the
Web application security. A remote attacker could use this flaw to
bypass intended mod_security restrictions by using chunked transfer
coding with a capitalized Chunked value in the Transfer-Encoding HTTP
header, allowing to send requests containing content that should have
been removed by mod_security.

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