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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0577 ejabberd security update 1 June 2011 =========================================================================== 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. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- 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 - - ------------------------------------------------------------------------- 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 - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk3lVy8ACgkQHYflSXNkfP9+XwCZASQIxH5wedS/Sv5RVbLq72TX BCQAmwa5smfQdADSxcAw9vRXuTPmuck4 =s7fb - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- 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 - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk3lWGYACgkQHYflSXNkfP+4IACeJxeVkXTIlPONJB4qs0FYTI4b BXQAoI1epUV+r6p3P+NOEoA+fRVxQ3yq =64+6 - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- 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 - - ------------------------------------------------------------------------- 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 - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk3lWZ0ACgkQHYflSXNkfP931ACeNRFzg5jx3Ca7zotWpQs42S8h h4UAn2pNrf9/sr6duOU05yG3bauDiBjI =ah12 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFN5ZyW/iFOrG6YcBERAowcAKDiPEbCPw/NoAKXqJcs3NipWe/xsgCeP5kH traJvZ78+0CcmeWDFill6RI= =VPaZ -----END PGP SIGNATURE-----