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CVE-2011-1753

Status Candidate

Overview

expat_erl.c in ejabberd before 2.1.7 and 3.x before 3.0.0-alpha-3, and exmpp before 0.9.7, does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.

Related Files

Gentoo Linux Security Advisory 201206-10
Posted Jun 22, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201206-10 - Multiple vulnerabilities have been found in ejabberd, the worst of which allowing for remote Denial of Service. Versions less than 2.1.9 are affected.

tags | advisory, remote, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2010-0305, CVE-2011-1753, CVE-2011-4320
MD5 | 5b439b072bbd2ea25e6474a89d4e8e4c
Debian Security Advisory 2248-1
Posted Jun 1, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2248-1 - 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.

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2011-1753
MD5 | d433a8d53b432e1a10afddabd3fbe51d
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