Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2011.0577
ejabberd security update
1 June 2011
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AusCERT Security Bulletin Summary
---------------------------------
Product: ejabberd
jabberd14
citadel
Publisher: Debian
Operating System: Debian GNU/Linux 5
Debian GNU/Linux 6
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2011-1756 CVE-2011-1754 CVE-2011-1753
Original Bulletin:
http://www.debian.org/security/2010/dsa-2248
Comment: This bulletin contains three (3) Debian security advisories.
This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running ejabberd check for an updated version of the software for
their operating system.
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Debian Security Advisory DSA-2248-1 security@debian.org
http://www.debian.org/security/ Nico Golde
March 31, 2011 http://www.debian.org/security/faq
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Package : ejabberd
Vulnerability : denial of service
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-1753
Wouter Coekaerts discovered that ejabberd, a distributed XMPP/Jabber server
written in Erlang, 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.
For the oldstable distribution (lenny), this problem has been fixed in
version 2.0.1-6+lenny3.
For the stable distribution (squeeze), this problem has been fixed in
version 2.1.5-3+squeeze1.
For the testing distribution (wheezy), this problem will be fixed soon.
For the unstable distribution (sid), this problem has been fixed in
version 2.1.6-2.1.
We recommend that you upgrade your ejabberd 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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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
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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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Debian Security Advisory DSA-2250-1 security@debian.org
http://www.debian.org/security/ Nico Golde
March 31, 2011 http://www.debian.org/security/faq
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Package : citadel
Vulnerability : denial of service
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-1756
Wouter Coekaerts discovered that the jabber server component of citadel,
a complete and feature-rich groupware server, 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.
For the oldstable distribution (lenny), this problem has been fixed in
version 7.37-8+lenny1.
For the stable distribution (squeeze), this problem has been fixed in
version 7.83-2squeeze2.
For the testing (wheezy) and unstable(sid) distributions,
this problem will be fixed soon.
We recommend that you upgrade your citadel 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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