Unrated severityNVD Advisory· Published Jun 21, 2011· Updated Jun 16, 2026
CVE-2011-1756
CVE-2011-1756
Description
modules/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.
Affected products
9cpe:2.3:a:citadel:citadel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:a:citadel:citadel:*:*:*:*:*:*:*:*range: <=7.86
- cpe:2.3:a:citadel:citadel:7.11:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.50:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.60:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.80:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.81:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.82:*:*:*:*:*:*:*
- cpe:2.3:a:citadel:citadel:7.84:*:*:*:*:*:*:*
- (no CPE)range: <=7.86
Patches
Vulnerability mechanics
References
8- code.citadel.org/cgit.cgi/git.citadel.org/commit/nvdPatch
- code.citadel.org/cgit.cgi/git.citadel.org/commit/nvdPatch
- security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gznvdPatch
- secunia.com/advisories/44788nvdVendor Advisory
- packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelognvd
- packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelognvd
- www.debian.org/security/2011/dsa-2250nvd
- www.securityfocus.com/bid/48071nvd
News mentions
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