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Debian Security Advisory 2249-1

Debian Security Advisory 2249-1
Posted Jun 1, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2249-1 - Wouter Coekaerts discovered that jabberd14, an instant messaging server using the Jabber/XMPP protocol, is vulnerable to the so-called "billion laughs" attack because it does not prevent entity expansion on received data. This allows an attacker to perform denial of service attacks against the service by sending specially crafted XML data to it.

tags | advisory, denial of service, protocol
systems | linux, debian
advisories | CVE-2011-1754
SHA-256 | a991672c4d34580ef442852169e167e37d426325361127f31153c7141950080f

Debian Security Advisory 2249-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-2249-1 security@debian.org
http://www.debian.org/security/ Nico Golde
March 31, 2011 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : jabberd14
Vulnerability : denial of service
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-1754

Wouter Coekaerts discovered that jabberd14, an instant messaging server
using the Jabber/XMPP protocol, is vulnerable to the so-called
"billion laughs" attack because it does not prevent entity expansion on
received data. This allows an attacker to perform denial of service
attacks against the service by sending specially crafted XML data to it.


The oldstable distribution (lenny), does not contain jabberd14.

For the stable distribution (squeeze), this problem has been fixed in
version 1.6.1.1-5+squeeze1.

For the testing distribution (wheezy), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in
version 1.6.1.1-5.1


We recommend that you upgrade your jabberd14 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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