CVE-2011-1753

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.

Affected Software

Name	Vendor	Start Version	End Version
Ejabberd	Process-one	*	2.1.6 (including)
Ejabberd	Process-one	0.9 (including)	0.9 (including)
Ejabberd	Process-one	0.9.1 (including)	0.9.1 (including)
Ejabberd	Process-one	0.9.8 (including)	0.9.8 (including)
Ejabberd	Process-one	1.0.0 (including)	1.0.0 (including)
Ejabberd	Process-one	1.1.0 (including)	1.1.0 (including)
Ejabberd	Process-one	1.1.1 (including)	1.1.1 (including)
Ejabberd	Process-one	1.1.1.0 (including)	1.1.1.0 (including)
Ejabberd	Process-one	1.1.1.1 (including)	1.1.1.1 (including)
Ejabberd	Process-one	1.1.2 (including)	1.1.2 (including)
Ejabberd	Process-one	1.1.3 (including)	1.1.3 (including)
Ejabberd	Process-one	1.1.14 (including)	1.1.14 (including)
Ejabberd	Process-one	2.0.0 (including)	2.0.0 (including)
Ejabberd	Process-one	2.0.0-beta1 (including)	2.0.0-beta1 (including)
Ejabberd	Process-one	2.0.0-rc1 (including)	2.0.0-rc1 (including)
Ejabberd	Process-one	2.0.1_2 (including)	2.0.1_2 (including)
Ejabberd	Process-one	2.0.2 (including)	2.0.2 (including)
Ejabberd	Process-one	2.0.3 (including)	2.0.3 (including)
Ejabberd	Process-one	2.0.4 (including)	2.0.4 (including)
Ejabberd	Process-one	2.0.5 (including)	2.0.5 (including)
Ejabberd	Process-one	2.1.0 (including)	2.1.0 (including)
Ejabberd	Process-one	2.1.1 (including)	2.1.1 (including)
Ejabberd	Process-one	2.1.2 (including)	2.1.2 (including)
Ejabberd	Process-one	2.1.3 (including)	2.1.3 (including)
Ejabberd	Process-one	2.1.4 (including)	2.1.4 (including)
Ejabberd	Process-one	2.1.5 (including)	2.1.5 (including)
Ejabberd	Process-one	3.0.0-alpha1 (including)	3.0.0-alpha1 (including)
Ejabberd	Process-one	3.0.0-alpha2 (including)	3.0.0-alpha2 (including)
Ejabberd	Ubuntu	hardy	*
Ejabberd	Ubuntu	lucid	*
Ejabberd	Ubuntu	maverick	*
Ejabberd	Ubuntu	natty	*
Ejabberd	Ubuntu	upstream	*

NVD	https://nvd.nist.gov/vuln/detail/CVE-2011-1753
CWE	https://cwe.mitre.org/data/definitions/399.html

Affected Software

References