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Last updated: 4/24/2014

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Vulnerability Summary for CVE-2011-1756

Original release date: 06/20/2011
Last revised: 10/26/2011
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/AU:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: BID
Name: 48071
External Source: CONFIRM
Name: http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=27c991cc2059f5530d3d4e9689dc976b745f5b0c
Type: Patch Information
External Source: CONFIRM
Name: http://security.debian.org/debian-security/pool/updates/main/c/citadel/citadel_7.83-2squeeze2.diff.gz
Type: Patch Information
External Source: CONFIRM
Name: http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.83-2squeeze2/changelog
External Source: CONFIRM
Name: http://packages.debian.org/changelogs/pool/main/c/citadel/citadel_7.37-8+lenny1/changelog
External Source: SECUNIA
Name: 44788
Type: Advisory
External Source: DEBIAN
Name: DSA-2250
External Source: CONFIRM
Name: http://code.citadel.org/cgit.cgi/git.citadel.org/commit/?id=95040add546a705cc2d1d8f16293141f9f9845a6
Type: Patch Information

Technical Details

Vulnerability Type (View All)
  • Resource Management Errors (CWE-399)