CVE-2011-1756

NameCVE-2011-1756
Descriptionmodules/xmpp/serv_xmpp.c in Citadel 7.86 and earlier 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2250-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
citadel (PTS)wheezy8.14-2fixed
jessie8.24-1fixed
stretch902-4fixed
buster, sid911-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
citadelsource(unstable)8.04-1medium
citadelsourcelenny7.37-8+lenny1mediumDSA-2250-1
citadelsourcesqueeze7.83-2squeeze2mediumDSA-2250-1

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