Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Citadel | Citadel | <= 7.86 |
Related Weaknesses (CWE)
References
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3dPatch
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1Patch
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2
- http://secunia.com/advisories/44788Vendor Advisory
- http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7Patch
- http://www.debian.org/security/2011/dsa-2250
- http://www.securityfocus.com/bid/48071
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3dPatch
- http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1Patch
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/
- http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2
- http://secunia.com/advisories/44788Vendor Advisory
- http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7Patch
- http://www.debian.org/security/2011/dsa-2250
FAQ
What is CVE-2011-1756?
CVE-2011-1756 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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)...
How severe is CVE-2011-1756?
CVE-2011-1756 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1756?
Check the references section above for vendor advisories and patch information. Affected products include: Citadel Citadel.