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Vulnerability Details : CVE-2011-1756

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.
Publish Date : 2011-06-20 Last Update Date : 2011-10-26
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 399

- Related OVAL Definitions

Title Definition Id Class Family
DSA-2250-1 citadel -- denial of service oval:org.mitre.oval:def:12869 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-1756

# Product Type Vendor Product Version Update Edition Language
1 Application Citadel Citadel 7.11 Version Details Vulnerabilities
2 Application Citadel Citadel 7.50 Version Details Vulnerabilities
3 Application Citadel Citadel 7.60 Version Details Vulnerabilities
4 Application Citadel Citadel 7.80 Version Details Vulnerabilities
5 Application Citadel Citadel 7.81 Version Details Vulnerabilities
6 Application Citadel Citadel 7.82 Version Details Vulnerabilities
7 Application Citadel Citadel 7.84 Version Details Vulnerabilities
8 Application Citadel Citadel 7.86 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Citadel Citadel 8

- References For CVE-2011-1756

http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog CONFIRM
http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz CONFIRM
http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6 CONFIRM
http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c CONFIRM
http://www.securityfocus.com/bid/48071
BID 48071 Citadel XML Parsing Denial of Service Vulnerability Release Date:2011-06-01
http://www.debian.org/security/2011/dsa-2250
DEBIAN DSA-2250
http://secunia.com/advisories/44788
SECUNIA 44788
http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog CONFIRM

- Metasploit Modules Related To CVE-2011-1756

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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